Jealousy is nothing more than a fear of abandonment

Jealousy lives upon doubts. It becomes madness or ceases entirely as soon as we pass from doubt to certainty.

The older a fool is, the worse he is.

The only thing constant in life is change

What makes us so often discontented with those who transact business for us is that they almost always abandon the interest of their friends for the interest of the business, because they wish to have the honor of succeeding in that which they have undertaken.

We give nothing so freely as advice.

We often act treacherously more from weakness than from a fixed motive.