Enjoy present pleasures in such a way as not to injure future ones.

To err is human. To repeat error is of the Devil.

Philosophy is the art and law of life, and it teaches us what to do in all cases, and, like good marksmen, to hit the white at any distance.

Men trust rather to their eyes than to their ears; the effect of precepts is therefore slow and tedious, whilst that of examples is summary and effectual.

Real improvement is of slow growth only.

He who would do great things should not attempt them all alone.

No one can have a peaceful life who thinks too much about lengthening it.