Good-humor is a philosophic state of mind; it seems to say to Nature that we take her no more seriously than she takes us. I maintain that one should always talk of philosophy with a smile.

The same is true of Love, and the instinctive desire to please those whom we love. The teacher who succeeds in getting herself loved by the pupils will obtain results which one of a more forbidding temperament finds it impossible to secure.

The word 'cause' is an altar to an unknown god.

General scepticism is the live mental attitude of refusing to conclude. It is a permanent torpor of the will, renewing itself in detail towards each successive thesis that offers, and you can no more kill it off by logic than you can kill off obstinacy or practical joking.

Every sort of energy and endurance, of courage and capacity for handling life's evils, is set free in those who have religious faith.

An idea will infect another with its own emotional interest when they have become both associated together into any sort of a mental total.

Intelligence is a fixed goal with variable means of achieving it.