Things which are accidentally the causes either of hope or fear are called good or evil omens.

Emotion, which is suffering, ceases to be suffering as soon as we form a clear and precise picture of it.

I can control my passions and emotions if I can understand their nature

He who seeks to regulate everything by law is more likely to arouse vices than to reform them. It is best to grant what cannot be abolished, even though it be in itself harmful. How many evils spring from luxury, envy, avarice, drunkenness and the like, yet these are tolerated because they cannot be prevented by legal enactments.

Nothing in nature is by chance... Something appears to be chance only because of our lack of knowledge.

I have resolved to demonstrate by a certain and undoubted course of argument, or to deduce from the very condition of human nature, not what is new and unheard of, but only such things as agree best with practice.

Freedom is self-determination.