“Thought means life, since those who do not think so do not live in any high or real sense. Thinking makes the man”

“Our esteem for facts has not neutralized in us all religiousness. It is itself almost religious. Our scientific temper is devout.”

“Who speaks to the instincts speaks to the deepest in mankind, and finds the readiest response.”

“Young men of this class never do anything for themselves that they can get other people to do for them, and it is the infatuation, the devotion, the superstition of others that keeps them going. These others in ninety-nine cases out of a hundred are women.”

“Consider your origin; you were not born to live like brutes, but to follow virtue and knowledge”

“For where the instrument of intelligence is added to brute power and evil will, mankind is powerless in its own defense”