Physicist, Nobel Prize winner 1921

The latest indications we have suggest that Einstein was vegetarian only for the last year or so of his life, though he appears to have supported the idea for many years before practising it himself.
"So I am living without fats, without meat, without fish, but am feeling quite well this way. It always seems to me that man was not born to be a carnivore." This was from a letter written to Hans Muehsam, and dated March 30, 1954, which was about 1 year before Einstein died. This indicates he adopted a vegetarian diet at the end of his life. Another letter from 1953 indicated he was still eating meat at that time.
The above quote is from: The Expanded Quotable Einstein, collected and edited by Alice Calaprice. The book flap of Ms. Calaprice's book says: "Alice Calaprice is a Senior Editor at Princeton University Press, where she has specialized in the sciences and worked with the Einstein Papers for over twenty years."
More quotes:
"It is my view that the vegetarian manner of living by its purely physical effect on the human temperament would most beneficially influence the lot of mankind". - Letter to 'Vegetarian Watch-Tower', 27 December 1930
- if anyone can give us any further information about the 'Vegetarian Watchtower' it would be appreciated. It is possible that it was a German publication and that this is a translation. Information about the sources of any of the following quotes would also be useful:
"Nothing will benefit human health and increase chances for survival of life on Earth as much as the evolution to a vegetarian diet. "
"The man who regards his own life and that of his fellow creatures as meaningless is not merely unhappy but hardly fit for life. "
A human being is a part of the whole, called by us the 'Universe', a part limited in time and space. He experiences himself, his thoughts and feelings, as something separate from the rest - a kind of optical delusion of his consciousness. This delusion is a kind of prison for us, restricting us to our personal desires and to affection for a few persons nearest to us. Our task must be to free ourselves from this prison by widening our circle of compassion to embrace all living creatures and the whole of nature in its beauty. Nobody is able to achieve this completely, but the striving for such achievement is in itself a part of the liberation and a foundation for inner security. - New York Post, 28 November 1972
"Few people are capable of expressing with equanimity opinions which differ from that of their social environment. "
"It is easier to denature plutonium than to denature the evil spirit of man."
"The important thing is not to stop questioning."
"Only a life lived for others is a life worth living!"