Quotes from Benedict de Spinoza

When a man is prey to his emotions, he is not his own master.

No to laugh, not to lament, not to detest, but to understand.

Happiness is not the reward of virtue, but is virtue itself; nor do we delight in happiness because we restrain from our lusts; but on the contrary, because we delight in it, therefore we are able to restrain them.

In fact, the real disturbers of the peace are those who, in a free state, seek to curtail the liberty of judgment which they are unable to tyrannize over.