Those who are too smart to engage in politics are punished by being governed by those who are dumber.

Philosophy is an elegant thing, if anyone modestly meddles with it; but if they are conversant with it more than is becoming, it corrupts them.

Wisdom alone is the science of others sciences.

Those who intend on becoming great should love neither themselves or their own things, but only what is just, whether it happens to be done by themselves or others.

We will be better men, braver and less idle, if we believe that one must search for the things one does not know, rather than if we believe that it is not possible to find out what we do not know and that we must not look for it.

Worthy of honor is he who does no injustice, and more than twofold honor, if he not only does no injustice himself, but hinders others from doing any.

I have hardly ever known a mathematician who was capable of reasoning.