"The true and proper object of a free government is the greatest happiness of the greatest number."

"The liberty of the individual must be thus far limited; he must not make himself a nuisance to other people."

"Truth gains more even by the errors of one who, with due study and preparation, thinks for himself, than by the true opinions of those who only hold them because they do not suffer themselves to think…"

"The only freedom, which is of real value, is that of pursuing our own good in our own way, without reference to the opinions of others."

"The only part of the conduct of any one, for which he is amenable to society, is that which concerns others."