The only force that can overcome an idea and a faith is another and better idea and faith, positively and fearlessly upheld.

Can one preach at home inequality of races and nations and advocate abroad good-will towards all men?

Lawlessness is a self-perpetuating, ever-expanding habit.

Inventive man has invented nothing -- nothing from scratch. If he has produced a machine that in motion overcomes the law of gravity, he learned the essentials from the observation of birds.

Courage, it would seem, is nothing less than the power to overcome danger, misfortune, fear, injustice, while continuing to affirm inwardly that life with all its sorrows is good; that everything is meaningful even if in a sense beyond our understanding; and that there is always tomorrow.

Only when we are no longer afraid do we begin to live in every experience, painful or joyous, to live in gratitude for every moment, to live abundantly.

It is not the fact of liberty but the way in which liberty is exercised that ultimately determines whether liberty itself survives.