Tube station staff at Covent Garden London Underground station have left a tribute to RMT leader Bob Crow, who died today aged 52.
Workers at the tube stop Instagrammed this picture of their "quote of the day" sign, adapted to remember Mr Crow.
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Quoting Mark Twain in a gothic script, they wrote: "Fear of death follows fear of life.
"A man who lives life fully is prepared to die at any time.
"RIP Robert Crow RMT. 13/06/1961 - 11/03/2014"
Mr Crow died in the early hours of this morning after suffering a heart attack.
He was one of the most high-profile, left-wing union leaders of his generation, sparking as much anger from passengers hit by rail and Tube strikes, as praise from his members for winning pay rises.
Bob Crow was also involved in a number of high-profile spats with London Mayor Boris Johnson, most notably over strikes by London Underground workers.
In a blog post for the Huffington Post UK, the union leader had described why tube workers went on strike earlier this year, saying: "We will not accept a scandalous attempt to dress up savage, austerity-led cuts under the cloak of 'modernisation'."
Bob Crow: Life in pictures
(01 of31)
Bob Crow, General Secretary of the National Union of Rail showing a page of the Daily Mail newspaper whilst answering claims about his expensive holiday at TUC HQ in central London ahead of two planned 48-hour London Tube strikes (credit:Rex)
Protests Are Held Throughout The UK Opposing The Coalition Government's Spending Review(02 of31)
LONDON - OCTOBER 23: General Secretary for the RMT Union Bob Crow addresses activists and other demonstrators as they gather in Bedford Square to protest against goverment spending cuts in central London on October 23, 2010 in London, England. Protesters are gathering accross the country today to speak out against the public sector cuts unveiled by the Chancellor George Osborne on Wednesday. (Photo by Dan Kitwood/Getty Images) (credit:Getty Images)
Protests Against Staff Cuts Across London Transport(03 of31)
LONDON, ENGLAND - OCTOBER 23: RMT General Secretary Bob Crow joins campaign groups protesting outside Oxford Circus tube station against plans to reduce staff on transport routes across the Capital on October 23, 2013 in London, England. The proposed changes include the closure of London Underground ticket offices and the removal of guards on London Overground trains. (Photo by Oli Scarff/Getty Images) (credit:Getty Images)
Tube strike(04 of31)
Union leader Bob Crow, general secretary of the RMT union, stands outside City Hall, London, as he speaks by mobile phone to the Mayor of London Boris Johnson, whilst the mayor takes part in a weekly LBC radio phone in show, as the union leader waits to confront the mayor in a last ditch attempt to head off a strike by London Underground workers. (credit:PA)
Tube strike(05 of31)
Union leaders Bob Crow (right) general secretary of the RMT and Manuel Cortes, general secretary of the TSSA, outside City Hall, London, following a last ditch effort to try to confront the Mayor of London Boris Johnson in a last ditch attempt to head off a strike by London Underground workers. (credit:PA)
Bob Crow stock(06 of31)
Union leader Bob Crow, general secretary of the RMT union. (credit:PA)
Tube strike(07 of31)
Union leaders Bob Crow (right) general secretary of the RMT and Manuel Cortes, general secretary of the TSSA arrive at City Hall in a last ditch effort to try to confront the Mayor of London Boris Johnson in a last ditch attempt to head off a strike by London Underground workers. (credit:PA)
Rail fares report(08 of31)
RMT General Secretary Bob Crow (left) and ASLEF General Secretary Mick Whelan (right) during a fares protest organised by the TUC's Action for Rail campaign outside Kings Cross station in London. The campaign aims to highlight how rail fares have risen faster than inflation, and how the UK has the most expensive fares in Europe. (credit:PA)
Fire stations closures(09 of31)
General Secretary of the Rail, Maritime and Transport Workers Union Bob Crow speaks at a rally of firefighters outside a meeting of the London Fire Authority, in Southwark, London, which is considering plans to close fire stations and cut jobs. (credit:PA)
Leveson Inquiry(10 of31)
General Secretary of the RMT Bob Crow leaves the Leveson Inquiry in London, with his supporters after giving evidence. (credit:PA)
TUC march(11 of31)
General Secretary of the National Union of Rail, Maritime and Transport Workers (RMT) Bob Crow, speaks on stage at Hyde Park, during the TUC organised protest and march 'A Future That Works', in London. (credit:PA)
TUC Congress(12 of31)
Bob Crow (left), general sectretary of the RMT, leads a demonstration outside the TUC Congress at the Brighton Centre in Sussex. (credit:PA)
TUC Congress(13 of31)
General Secretary of the National Union of Rail, Maritime and Transport Workers Union Bob Crow listens to a speaker during the opening day of the TUC congress at Manchester Central, Manchester. (credit:PA)
Tube strike(14 of31)
RMT leader Bob Crow (left) holds a news conference with the General Secretary of the TSSA, Gerry Docherty, regarding the 24 hour tube strike in London by their members in protest at plans to cut 800 jobs. (credit:PA)
Tube strike(15 of31)
A member of the Rail Maritime and Transport (RMT) union jokingly places his hands around the neck of union leader Bob Crow on the picket line outside Euston Station, London. Commuters and other passengers faced travel misery when a strike by rail workers caused major disruption to London Underground services. PRESS ASSOCIATION Photo. Picture date: Tuesday September 7, 2010. Thousands of members of the RMT and the Transport Salaried Staffs Association walked out last night for 24 hours, threatening travel chaos until tomorrow morning, in protest at plans to axe 800 jobs. Transport for London maintained that services were running on a number of lines and said people were able to travel around the capital because of its contingency plans for dealing with the industrial action. See PA story INDUSTRY Tube. Photo credit should read: Lewis Whyld/PA Wire (credit:PA)
Judge blocks National Rail strike(16 of31)
Bob Crow (centre), general secretary of the Rail Maritime and Transport union (RMT), leaves the High Court in London after Judge Mrs Justice Sharp made an interim order against RMT and granting an injunction preventing a crippling national strike was granted to Network Rail. (credit:PA)
TUC Congress(17 of31)
Bob Crow, General Secretary of the Rail, Maritime and Transport Union, speaking during the T.U.C. Conference at the Brighton Centre in Sussex. (credit:PA)
(18 of31)
Bob Crow, leader of the RMT Union out for a morning jog with his dog Castro, London, Britain - 01 Oct 2010 (credit:Rex)
(19 of31)
Bob Crow The Rail Maritime Transport Union Leader Who Is Responsible For Underground Strike Action On The Picket Line Today At Leytonstone Station (credit:Rex)
(20 of31)
General Secretary Of The RMT Bob Crow Pictured After Being Attacked At His Home. (credit:Rex)
Tube strike(21 of31)
Bob Crow, the RMT General secretary, with tube maintenance workers at an officially picket outside the Northumberland Park depot in Tottenham Hale, north London. (credit:PA)
Tube strike(22 of31)
Bob Crow, general secretary of the Rail Maritime and Transport Union, left, leaves a picket line and is directed across the road to the Department of Transport in Westminster, London, as he delivers a letter concerning the strike by the RMT union which has closed two-thirds of the Tube network and affected 10 lines. (credit:PA)
INDUSTRY Rail Re-Nationalisation(23 of31)
General Secretary of the Rail, Maritime and Transport union, Bob Crow, attends a press conference at Unity House, London, following this morning's announcement by Network Rail that it intends to take rail maintenance work in-house by September 2004. Mr Crow said that the decision was a major step towards the complete re-nationalisation of the railways. (credit:PA)
Tube workers tribunal(24 of31)
General Secretary of the Rail Maritime and Transport (RMT) union Bob Crow (left of banner, red tie) joins tube workers who were sacked after alcohol was found in a mess room at Farringdon Station and supporters outside the employment tribunal where their case is being heard in London. The hearing into the case is set to last five days. (credit:PA)
Bob Crow - Labour Conference(25 of31)
Bob Crow, General Secretary of the RMT union,who is attending the Labour Party conference in Blackpool in his capacity as editor of the Union newspaper and not as a delegate, enjoys a pint of Beer after the conference session yesterday. * Members of the Rail Maritime and Transport union, along with Aslef, were staging a 24-walk out from the London Underground, beginning at 8pm, in a dispute over pay. (credit:PA)
TUC Congress(26 of31)
Bob Crow, General Secretary of the Rail Maritime and Transport Union, speaking during the transport debate at the annual TUC Congress in Brighton. Mr Crow said today Labour would increase its chances of winning the next election if it re-nationalised the railway industry, as the government faced fresh attacks over its transport policies. (credit:PA)
Public Sector workers Nationwide strike - Bob Crow(27 of31)
Bob Crow, the General Secretary of the railways union RMT, speaks at a joint unions' rally outside the Greater London Assembley (GLA) building by Tower Bridge in London. *An estimated 1.2 million public sector workers are taking part in the largest Nationwide strike since the winter of discontent in 1979. The strike was called after employers offered 3% pay rise, despite union demands of 6%. Many Council workers are amongst the poorest paid workers in the UK, with two thirds of stafff earning less than 13,000, though the national average wage is 19,406. (credit:PA)
Potters Bar train crash (28 of31)
Bob Crow of the RMT arrives at Potters Bar railway station in north London where engineers are hoping to use a massive crane to remove the fourth carriage of the train, which is wedged under the canopy of the station. * ... Seven people died in the accident, which is now believed to have been caused by points failure. The investigation has so far established that nuts missing from key bolts caused a track stretcher bar to fracture and derail the train. (credit:PA)
The London Underground Grinds To A Halt As RMT Workers Hold A 24 Hour Strike(29 of31)
LONDON, ENGLAND - OCTOBER 04: Bob Crow, General Secretary of the RMT (left) and Gerry Doherty (right), General Secretary of the TSSA address members of the press on October 4, 2010 in London, England. London Underground workers are staging a 24 hour walk out over concerns at plans to cut jobs in ticket offices, causing large disruption to the capitals transport network. (Photo by Matthew Lloyd/Getty Images) (credit:Getty Images)
(30 of31)
Bob Crow Joins Eight Pickets At Leytonstone Underground Station After Members Of The RMT Went On Strike
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General Secretary Of The National Union Of Rail Maritime And Transport Workers Bob Crow. (credit:Rex)