Life is like riding a bicycle. To keep your balance you must keep moving.

- Albert Einstein -

Albert Einstein (1879–1955) was a German-born physicist and the author of the special and general theories of relativity. He received the Nobel Prize in 1921, not for relativity but for explaining the photoelectric effect. After the Nazis came to power he emigrated to the United States, spending the rest of his life at Princeton.

About this theme: Life

Life is the broadest theme in any collection of quotations and therefore the most uneven. The same heading holds Seneca's letter on the shortness of time and a sentence from a greetings card. The difference usually comes down to whether a line asks something of the reader or flatters them.

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