Love is nothing but joy accompanied with the idea of an eternal cause.

Men govern nothing with more difficulty than their tongues, and can moderate their desires more than their words.

If a man had begun to hate an object of his love, so that love is thoroughly destroyed, he will, causes being equal, regard it with more hatred than if he had never loved it, and his hatred will be in proportion to the strength of his former love.

Sadness diminishes a man's powers

The greater emotion with which we conceive a loved object to be affected toward us, the greater will be our complacency.

Reason connot defeat emotion, an emotion can only be displaced or overcome by a stronger emotion.

The more a government strives to curtail freedom of speech, the more obstinately is it resisted; not indeed by the avaricious, ... but by those whom good education, sound morality, and virtue have rendered more free.