A little cooling down of animal excitability and instinct, a little loss of animal toughness, a little irritable weakness and descent of the pain-threshold, will bring the worm at the core of all our usual springs of delight into full view, and turn us into melancholy metaphysicians.

For I had often said that the best argument I knew for an immortal life was the existence of a man who deserved one as well as Child did.

I am well aware how odd it must seem to some of you to hear me say that an idea is true so long as to believe it is profitable to our lives

My experience is what I agree to attend to.

The teachers of this country, one may say, have its future in their hands.

Theory must mediate between all previous truths and certain new experiences

Our beliefs and our attention are the same fact.