Our errors are surely not such awfully solemn things. In a world where we are so certain to incur them in spite of all our caution, a certain lightness of heart seems healthier than this excessive nervousness on their behalf.

Science can tell us what exists; but to compare the worths, both of what exists and of what does not exist, we must consult not science, but what Pascal calls our heart.

Great emergencies and crises show us how much greater our vital resources are than we had supposed.

I take it that no man is educated who has never dallied with the thought of suicide.

... the intellect, everywhere invasive, shows everywhere its shallowing effect.

Our beliefs and our attention are the same fact.

Better risk loss of truth than chance of error--that is your faith-vetoer's exact position. He is actively playing his stake as much as the believer is; he is backing the field against the religious hypothesis, just as the believer is backing the religious hypothesis against the field.