Albert Einstein: Trending quotes

Letter to Jost Winteler (1901), quoted in The Private Lives of Albert Einstein by Roger Highfield and Paul Carter (1993), p. 79 http://books.google.com/books?id=zY7FE9ZyDO0C&lpg=PP1&pg=PA79#v=onepage&q&f=false. Einstein had been annoyed that Paul Drude, editor of Annalen der Physik, had dismissed out of hand some criticisms Einstein made of Drude's electron theory of metals.
1900s
Variant: A foolish faith in authority is the worst enemy of truth.

Variant: A person who never made a mistake never tried anything new.

As quoted by LIFE magazine (2 May 1955)
1950s
Variant: Strive not to be a success, but rather to be of value.

http://umich.edu/~scps/html/01chap/html/summary.htm
Attributed in posthumous publications, Einstein and Religion (1999)

Source: Attributed in posthumous publications, Einstein and the Poet (1983), p. 94
Context: Religion and science go together. As I've said before, science without religion is lame and religion without science is blind. They are interdependent and have a common goal—the search for truth. Hence it is absurd for religion to proscribe Galileo or Darwin or other scientists. And it is equally absurd when scientists say that there is no God. The real scientist has faith, which does not mean that he must subscribe to a creed. Without religion there is no charity. The soul given to each of us is moved by the same living spirit that moves the universe.

Variant transcription from "Death of a Genius" in Life Magazine: "Try not to become a man of success but rather try to become a man of value. He is considered successful in our day who gets more out of life than he puts in. But a man of value will give more than he receives."
Source: Attributed in posthumous publications, Einstein and the Poet (1983), p. 143

As quoted by Ernst Straus in Einstein: A Centenary Volume by A.P. French (1980), p. 32.
Attributed in posthumous publications
Variant: "if you want to be a happy man, you should tie your life to a goal, not to other people and not to things." A quote from Ernst Straus' memoir of Einstein in Albert Einstein: Historical and Cultural Perspectives edited by Gerald Holton and Yehuda Elkana (1982), p. 420 http://books.google.com/books?id=CNuwE3NL1QgC&lpg=PP1&pg=PA420#v=onepage&q&f=false

Variant: Your imagination is your preview of life’s coming attractions.

Said to Samuel J Woolf, Berlin, Summer 1929. Cited with additional notes in The Ultimate Quotable Einstein by Alice Calaprice and Freeman Dyson, Princeton UP (2010) p 230
1920s
Variant: If A is success in life, then A equals x plus y plus z. Work is x; y is play; and z is keeping your mouth shut.

In answer to a question asked by the editors of Youth, a journal of Young Israel of Williamsburg, NY. Quoted in the New York Times, June 20, 1932, pg. 17 http://select.nytimes.com/gst/abstract.html?res=F40617F83B5A13738DDDA90A94DE405B828FF1D3
Unsourced variant: Only a life in the service of others is worth living.
1930s
Variant: I believe in one thing—that only a life lived for others is a life worth living.

Letter to his son Eduard (5 February 1930), as quoted in Walter Isaacson, Einstein: His Life and Universe (2007), p. 367
1930s

As quoted in Journal of France and Germany (1942–1944) by Gilbert Fowler White, in excerpt published in Living with Nature's Extremes: The Life of Gilbert Fowler White (2006) by Robert E. Hinshaw, p. 62. From the context http://books.google.com/books?id=_2qfZRp9SeEC&lpg=PP1&pg=PA62#v=onepage&q&f=false it seems that White did not specify whether he had heard Einstein himself say this or whether he was repeating a quote that had been passed along by someone else, so without a primary source the validity of this quote should be considered questionable.
Some have argued that elsewhere Einstein defined a "miracle" as a type of event he did not believe was possible—Einstein on Religion by Max Jammer (1999) quotes on p. 89 from a 1931 conversation Einstein had with David Reichinstein, where Reichinstein brought up philosopher Arthur Liebert's argument that the indeterminism of quantum mechanics might allow for the possibility of miracles, and Einstein replied that Liebert's argument dealt "with a domain in which lawful rationality [determinism] does not exist. A 'miracle,' however, is an exception from lawfulness; hence, there where lawfulness does not exist, also its exception, i.e., a miracle, cannot exist." ("Dort, wo eine Gesetzmässigkeit nicht vorhanden ist, kann auch ihre Ausnahme, d.h. ein Wunder, nicht existieren." D. Reichenstein, Die Religion der Gebildeten (1941), p. 21). However, it is clear from the context that Einstein was stating only that miracles cannot exist in a domain (quantum mechanics) where lawful rationality does not exist. He did not claim that miracles could never exist in any domain. Indeed, Einstein clearly believed, as seen in many quotations above, that the universe was comprehensible and rational, but he also described this characteristic of the universe as a "miracle". In another example, he is quoted as claiming belief in a God, "Who reveals Himself in the lawful harmony of the world."
As quoted in From Yale to Jail: The Life Story of a Moral Dissenter (1993) by David T. Dellinger, p. 418
Disputed
Variant: There are only two ways to live your life. One is as though nothing is a miracle. The other is as though everything is a miracle.
Variant: There are only two ways to live your life. One is as though nothing is a miracle. The other is as though everything is a miracle.