He neither seeks nor avoids talking about his enemies. When he does speak of them, it is with pride without disdain, humor without rancor, reproach without bitterness, frankness without spite. And in the same way, he speaks of his rivals for glory only with deserved praises that conceal no hidden venom, which can certainly not be said of the praise they sometimes give him. But what I find in him that is most rare in an Author and and even in a sensitive man is the most perfect tolerance in matters of feelings and opinions, and the putting aside of all partisan spirit, even in his own favor; wanting freely to state his opinion and his reasons when the issue demands it, and even doing so with passion when his heart is agitated; but not blaming people for not adopting what he feels any more than he puts up with anyone's wish to deprive him of his feeling; and giving everyone the same freedom of thought as he insists on having for himself. I hear everyone talk about tolerance, but he is the only truly tolerant person I have known.
Jean-Jacques Rousseau