"If all mankind minus one were of one opinion, mankind would be no more justified in silencing that one person than he, if he had the power, would be justified in silencing mankind."

"Religion, the most powerful of the elements which have entered into the formation of moral feeling, having almost always been governed either by the ambition of a hierarchy, seeking control over every department of human conduct, or by the spirit of Puritanism."

"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 general tendency of things throughout the world is to render mediocrity the ascendant power among mankind."

"But these few are the salt of the earth; without them, human life would become a stagnant pool. Not only is it they who introduce good things which did not before exist, it is they who keep the life in those which already existed."

"It is an adherent condition of human affairs that no intention, however sincere, of protecting the interests of others can make it safe or salutary to tie up their own hands. Still more obviously true is it, that by their own hands only can any positive and durable improvement of their circumstances in life be worked out."

"Foresight of phenomenon and power over them depend on knowledge of their sequences, and not upon any notion we may have formed respecting their origin or inmost nature."

"It is questionable if all the mechanical inventions yet made have lightened the day's toil of any human being."

"Judgment is given to men that they may use it. Because it may be used erroneously, are men to be told that they ought not to use it at all? To prohibit what they think pernicious is not claiming exemption from error, but fulfilling the duty incumbent on them, although fallible, of acting on their conscientious conviction. If we were never to act on our opinions, because those opinions 'lay be wrong, we should leave all our interests uncared for, and all our duties unperformed. An objection which applies to all conduct can be no valid objection to any conduct in particular."

"Society can and does execute its own mandates: and if it issues wrong mandates instead of right, or any mandates at all in things with it ought not to meddle, it practices a social tyranny more formidable than many kinds of political oppression, since, though not usually upheld by such extreme penalties, it leaves fewer means of escape, penetrating much more deeply into the details of life, and enslaving the soul itself."

"Human beings are no longer born to their place in life, and chained down by an inexorable bond to the place they are born to, but are free to employ their faculties, and such favourable chances as offer, to achieve the lot which may appear to them most desirable."

"First, if any opinion is compelled to silence, that opinion may, for aught we can certainly know, be true. To deny this is to assume our own infallibility. Secondly, though the silenced opinion be an error, it may, and very commonly does, contain a portion of the truth; and since the general or prevailing opinion on any subject is rarely or never the whole truth, it is only by the collision of adverse opinions that the remainder of the truth has any chance of being supplied."

"All desirable things... are desirable either for the pleasure inherent in themselves, or as a means to the promotion of pleasure and the prevention of pain."

"All the moralities tell them that it is the duty of women, and all the current sentimentalities that it is their nature, to live for others; to make complete abnegation of themselves, and to have no life but their affections. - The Subjection of Women."

"Language is the light of the mind."

"The assumption that we are infallible can we justify the suppression of opinions we think false. Ages are as fallible as individuals, every age having held many opinions which subsequent ages have deemed not only false but absurd."

"The idea that truth always triumphs over persecution is one of those pleasant falsehoods, which most experience refutes. History is teeming with instances of truth put down by persecution. If not put down forever, it may be set back for centuries."