The highest endeavor of the mind, and the highest virtue, is to understand things by intuition. — Baruch Spinoza. Portuguese-Dutch philosopher (1632–1677)
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 an absence of war, it is a virtue, a state of mind, a disposition for benevolence, confidence, justice.
I saw that all things I feared, and which feared me, had nothing good or bad in them save insofar as the mind was affected by them.
If men were born free, they would, so long as they remained free, form no conception of good and evil.