It is well for the world that in most of us, by the age of thirty, the character has set like plaster, and will never soften again.

The union of the mathematician with the poet, fervor with measure, passion with correctness, this surely is the ideal.

The greatest weapon against stress is our ability to choose one thought over another.

Fatalism, whose solving word in all crises of behavior is All striving is vain, will never reign supreme, for the impulse to take life strivingly is indestructible in the race. Moral creeds which speak to that impulse will be widely successful in spite of inconsistency, vagueness, and shadowy determination of expectancy. Man needs a rule for his will, and will invent one if one be not given him.

Every claim creates an obligation.

Time itself comes in drops.

For morality life is a war, and the service of the highest is a sort of cosmic patriotism which also calls for volunteers.