“Each man is everything to himself, for with his death everything is dead for him. That is why each of us thinks he is everything to everyone. We must not judge nature by ourselves, but by its own standards.”

“We must keep our thought secret, and judge everything by it, while talking like the people.”

“As we cannot be universal by knowing everything there is to know about everything, we must know a little about everything, because it is much better to know something about everything than everything about something. Such universality is the finest. It would be still better if we could have both together, but, if a choice must be made, this is the one to choose. The world knows this and does so, for the world is often a good judge.”

“Two contrary reasons. We must begin with that, otherwise we cannot understand anything and everything is heretical. And even at the end of each truth we must add that we are bearing the opposite truth in mind.”

“The world is a good judge of things, for it is in natural ignorance, which is man's true state. The sciences have two extremes which meet. The first is the pure natural ignorance in which all men find themselves at birth. The other extreme is that reached by great intellects, who, having run through all that men can know, find they know nothing, and come back again to that same ignorance from which they set out; but this is a learned ignorance which is conscious of itself. Those between the two, who have departed from natural ignorance and not been able to reach the other, have some smattering of this vain knowledge and pretend to be wise. These trouble the world and are bad judges of everything. The people and the wise constitute the world; these despise it, and are despised. They judge badly of everything, and the world judges rightly of them.”

“and the same man who spends so many days and nights in fury and despair at losing some office or at some imaginary affront to his honour is the very one who knows that he is going to lose everything through death and feels neither anxiety nor emotion.”

“Those honor nature well, who teach that she can speak on everything.”