Summer lasts not for ever; seasons succeed each other.

No wise man has called a change of opinion in constancy.

Nothing is more noble, nothing more venerable than fidelity. Faithfulness and truth are the most sacred excellences and endowments of the human mind.

The wise man knows nothing if he cannot benefit from his wisdom. Wisdom is not only to be acquired, but also to be utilized.

Loyalty is what we seek in friendship.

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

Of all nature's gifts to the human race, what is sweeter to a man than his children?