Except during the nine months before he draws his first breath, no man manages his affairs as well as a tree does.
One of the simple but genuine pleasures in life is getting up in the morning and hurrying to a mousetrap you set the night before.
The impotence of God is infinite.
I am not young enough to know everything.
Man is a natural polygamist: he always has one woman leading him by the nose, and another hanging on to his coattails.
Everyone thinks of changing the world, but no one thinks of changing himself.
Life only demands from you the strength you possess. Only one feat is possible – not to have run away.
Science is nothing but trained and organized common sense.