"The 'self-regarding' offences, if they are to be called offences, are not to be punished at all."

"No one can be a great thinker who does not recognize, that as a thinker it is his first duty to follow his intellect to whatever conclusions it may lead."

"A state which dwarfs its men, in order that they may be more docile instruments in its hands even for beneficial purposes, will find that with small men no great thing can really be accomplished."

"The principle of utility is capable of receiving proof, only by showing that the only things desirable as ends are happiness and freedom from pain."

"The only way to ascertain the truth of an opinion is to permit its free expression."