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.
John Stuart MillAlmost all rich veins of original and striking speculation have been opened by systematic half-thinkers.
John Stuart MillThe liberty of the individual must be thus far limited; he must not make himself a nuisance to other people.
John Stuart MillSince the general or prevailing opinion on any subject is rarely or never the whole truth, it is only by the collision of adverse opinion that the remainder of the truth has any chance of being supplied.
John Stuart MillThe principle itself of dogmatic religion, dogmatic morality, dogmatic philosophy, is what requires to be rooted out; not any particular manifestation of that principle. The very corner-stone of an education intended to form great minds, must be the recognition of the principle, that the object is to call forth the greatest possible quantity of intellectual power, and to inspire the intensest love of truth.
John Stuart Mill