Adversity makes men, and prosperity makes monsters.
Who dares nothing, need hope for nothing.
Admiration is the daughter of ignorance.
Adaptability is not imitation. It means power of resistance and assimilation.
One learns to itch where one can scratch.
Complete adaptation to environment means death. The essential point in all response is the desire to control environment.
Make yourself necessary to somebody.
Give me the ready hand rather than the ready tongue.
Periods of tranquility are seldom prolific of creative achievement. Mankind has to be stirred up.
It is by acts and not by ideas that people live.