Jealousy is in a manner just and reasonable, as it tends to preserve a good which belongs, or which we believe belongs to us, on the other hand envy is a fury which cannot endure the happiness of others.

Happiness does not consist in things themselves but in the relish we have of them; and a man has attained it when he enjoys what he loves and desires himself, and not what other people think lovely and desirable.

Idleness is more an infirmity of the mind than of the body.

The intellect is always fooled by the heart.

Self-love makes our friends appear more or less deserving in proportion to the delight we take in them, and the measures by whichwe judge of their worth depend upon the manner of their conversing with us.

To safeguard one's health at the cost of too strict a diet is a tiresome illness, indeed.

Customary use of artifice is the sign of a small mind, and it almost always happens that he who uses it to cover one spot uncovers himself in another.