To deny, to believe, and to doubt well, are to a man what the race is to a horse.

No religion except ours has taught that man is born in sin; none of the philosophical sects has admitted it; none therefore has spoken the truth

I rather live as if God exists to find out that He doesn't than live as if he doesn't exist to find out He does.

All the troubles of life come upon us because we refuse to sit quietly for a while each day in our rooms.

Don't try to add more years to your life. Better add more life to your years.

To scorn philosophy is truly to philosophize.

Silence. All human unhappiness comes from not knowing how to stay quietly in a room.