"Humor is the only test of gravity, and gravity of humor; for a subject which will not bear raillery is suspicious, and a jest which will not bear serious examination is false wit."

"If liberty and equality, as is thought by some, are chiefly to be found in democracy, they will be best attained when all persons alike share in the government to the utmost."

"It is the mark of an educated mind to be able to entertain a thought without accepting it."

"The fate of empires depends on the education of youth."

"The only stable state is the one in which all men are equal before the law."

"To enjoy the things we ought, and to hate the things we ought has the greatest bearing on excellence of character."

"What it lies in our power to do, it lies in our power not to do."