Rightly defined philosophy is simply the love of wisdom.

Rashness attends youth, as prudence does old age.

Certain signs are the forerunners of certain events.

This, therefore, is a law not found in books, but written on the fleshly tablets of the heart, which we have not learned from man, received or read, but which we have caught up from Nature herself, sucked in and imbibed; the knowledge of which we were not taught, but for which we were made; we received it not by education, but by intuition.

Wars are to be undertaken in order that it may be possible to live in peace without molestation.

Friends are proved by adversity.

No one can speak well, unless he thoroughly understands his subject.