
volume I; lecture 3, "The Relation of Physics to Other Sciences"; section 3-6, "Psychology"; p. 3-8
The Feynman Lectures on Physics (1964)
Planet Without Laughter (1980) http://www-cs-faculty.stanford.edu/~knuth/smullyan.html
volume I; lecture 3, "The Relation of Physics to Other Sciences"; section 3-6, "Psychology"; p. 3-8
The Feynman Lectures on Physics (1964)
As quoted in The Life and Writings of Thomas Jefferson : Including All of His Important Utterances on Public Questions (1900) by Samuel E. Forman, p. 429
Posthumous publications
“Violence is a disease, a disease that corrupts all who use it regardless of the cause.”
“Crowd men have no sense of humor. It is very difficult to educate solemn and opinionated people.”
Source: The Meaning of a Liberal Education (1926), p. 89