The health of the soul is as precarious as that of the body; for when we seem secure from passions, we are no less in danger of their infection than we are of falling ill when we appear to be well.

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.

Jealousy is bred in doubts. When those doubts change into certainties, then the passion either ceases or turns absolute madness.

It is with an old love as it is with old age a man lives to all the miseries, but is dead to all the pleasures.

Too great refinement is false delicacy, and true delicacy is solid refinement.

In growing old, we become more foolish - and more wise.

There are some people who would never have fallen in love if they had not heard there was such a thing.