Those who shake the State are easily the first to be engulfed in its destruction. The fruits of dissension are not gathered by the one who began it: … - Michel de Montaigne

We are all blockheads.

Let this variety of ideas be set before him; he will choose if he can; if not, he will remain in doubt. Only the fools are certain and assured. For if he embraces Xenophon's and Plato's opinions by his own reasoning, they will no longer be theirs, they will be his. He who follows another follows nothing. He finds nothing; indeed he seeks nothing. We are not under a king; let each one claim his own freedom [Seneca]. Let him know that he knows, at least. He must imbibe their ways of thinking, not learn their precepts. And let him boldly forget, if he wants, where he got them, but let him know how to make them his own. Truth and reason are common to everyone, and no more belong to the man who first spoke them than to the man who says them later. It is no more according to Plato than according to me, since he and I understand and see it the same way. The bees plunder the flowers here and there, but afterward they make of them honey, which is all theirs; it is no longer thyme or marjoram. Even so with the pieces borrowed from others; he will transform and blend them to make a work of his own, to wit, his judgment. His education, work, and study aim only at forming this.

We must learn to suffer whatever we cannot avoid. Our life is composed, like the harmony of the world, of dischords as well as different tones, sweet and harsh, sharp and flat, soft and loud. If a musician liked only some of them, what could he sing? He has got to know how to use all of them and blend them together. So too must we with good and ill, which are of one substance with our life.