Service announcements on the London Underground are to include the words of great thinkers such as Gandhi, Albert Einstein and Jean-Paul Sartre.
Turner Prize-nominated artist Jeremy Deller has compiled a list of quotations to be used by Tube drivers.
The phrases will be included in communications with passengers on the network's Piccadilly Line.
The initiative is said to be an attempt to make travelling on the Underground more enjoyable and thought-provoking.
The Tube system already has Poems on the Underground, launched in 1986, featuring written verse on advertising space inside carriages.
London Underground also has a long tradition of promoting art on the network, dating back more than a century.
And earlier this year novels were loaned out free to commuters outside five Tube stations.
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