The world belongs to optimists; the pessimists are only spectators.
If I had not smoked I should have been dead ten years ago.
Modesty is a shining light; it prepares the mind to receive knowledge, and the heart for truth.
Nothing falsifies history more than logic.
The effect of great and inevitable misfortune is to elevate those souls which it does not deprive of all virtue.
Do not be afraid of enthusiasm. You need it. You can do nothing effectively without it.