"Weakness of attitude becomes weakness of character."
"Only one who devotes himself to a cause with his whole strength and soul can be a true master.
For this reason mastery demands all of a person."
"(1) Those instrumental goods which should serve to maintain the life and health of all human beings should be produced by the least possible labour of all.
(2) The satisfaction of physical needs is indeed the indespensible precondition of a satisfactory existence, but in itself is not enough. In order to be content men must also have the possibility of developing their intellectual and artistic powers to whatever extent accord with their personal characteristics and abilities."
“ Nothing truly valuable arises from ambition or from a mere sense of duty; it stems rather from love and devotion toward men and toward objective things.”
"The true value of a human being is determined primarily by the measure and the sense in which he has attained liberation from the self."
"Too many of us look upon Americans as dollar chasers. This is a cruel libel, even if it is reiterated thoughtlessly by the Americans themselves."
“How on earth are you ever going to explain in terms of chemistry and physics so important a biological phenomenon as first love?"
"Gravitation can not be held responsible for people falling in love"
"Put your hand on a hot stove for a minute, and it seems like an hour. Sit with a pretty girl for an hour, and it seems like a minute. THAT'S relativity."
"...one of the strongest motives that lead men to art and science is escape from everyday life with its painful crudity and hopeless dreariness, from the fetters of one's own ever-shifting desires. A finely tempered nature longs to escape from the personal life into the world of objective perception and thought."