“Dispositions of the mind, like limbs of the body, acquire strength by exercise.”

“No people who are ignorant can be truly free.”

“Man is an imitative animal. This quality is the germ of all education in him. From his cradle to his grave he is learning to do what he sees others do.”

“Everything is useful which contributes to fix in the principles and practices of virtue.”

“Self-love is no part of morality. Indeed it is exactly its counterpart. It is the sole antagonist of virtue leading us constantly by our propensities to self-gratification in violation of our moral duties to others.”

“That government is best which governs the least, because its people discipline themselves.”

“Freedom, the first-born of science.”

“Follow truth wherever it may lead you.”

“Nature intended me for the tranquil pursuits of science, by rendering them my supreme delight. But the enormities of the times in which I have lived, have forced me to take a part in resisting them, and to commit myself on the boisterous ocean of political passions.”

“Of all machines, the human heart is the most complicated and inexplicable.”

“A machine for making revolutions is doing precisely the wrong thing at just the right time.”

“The object of walking is to relax the mind. You should therefore not permit yourself even to think while you walk. But divert your attention by the objects surrounding you.”

“Nobody is better than you and remember, you are better than nobody.”

“It is the duty of every American citizen to take part in a vigorous debate on the issues of the day.”

“Every generation needs a new revolution.”

“Ridicule is the only weapon which can be used against unintelligible propositions.”