Spinoza

"Be not astonished at new ideas; for it is well known to you that a thing does not therefore cease to be true because it is not accepted by many."

"Peace is not the absence of war; it is a virtue; a state of mind; a disposition for benevolence; confidence; and justice."

Desire nothing for yourself, which you do not desire for others.

Indulge yourself in pleasures only in so far as they are necessary for the preservation of health.

Only that thing is free which exists by the necessities of its own nature, and is determined in its actions by itself alone.

He who would distinguish the true from the false must have an adequate idea of what is true and false.

Be not astonished at new ideas; for it is well known to you that a thing does not therefore cease to be true because it is not accepted by many.