"To be well governed, a state must be small."

"The greatest evil is not to be good, but to be bad when one has the power to be good."

"The most useful and honorable science is that of man; the most useful book, the one that makes us know ourselves."

"The most dangerous of all enterprises is to make a man think."

"The most important, most useful, and most neglected branch of education is that which teaches us to know ourselves."