"Small is Beautiful", an essay, in The Radical Humanist, Vol. 37, No. 5 (August 1973), p. 22 http://babel.hathitrust.org/cgi/pt?id=uc1.32106019678082;view=1up;seq=230
“It takes courage to make a fool of yourself.”
Variant: Failure is unimportant. It takes courage to make a fool of yourself
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Charlie Chaplin 75
British comic actor and filmmaker 1889–1977Related quotes

Actually written by E. F. Schumacher in a 1973 essay titled "Small is Beautiful" which appeared in The Radical Humanist: volume 37, p. 22 http://books.google.com/books?id=oA0IAQAAIAAJ&q=%22more+violent%22#search_anchor. Earliest published source found on Google Books attributing this to Einstein is BMJ: The British Medical Journal, volume 319, 23 October 1999, p. 1102 http://books.google.com/books?id=bQk7AQAAIAAJ&q=%22more+violent%22#search_anchor. It was attributed to Einstein on the internet somewhat before that, for example in this 1997 post http://groups.google.com/group/alt.weemba/msg/2bbf56ab8f4f757d?hl=en.
Misattributed

“If the truth is worth telling, it is worth making a fool of yourself to tell.”
Telling the Truth (1977)
“The gods only go with you if you put yourself in their path. And that takes courage.”
Source: The Crystal Cave

Dogs
The Note-Books of Samuel Butler (1912), Part XIV - Higgledy-Piggledy
Source: Special Topics in Calamity Physics

“Any fool can make something complicated. It takes a genius to make it simple.”