Among the works of man, which human life is rightly employed in perfecting, the first in importance surely is man himself.
John Stuart MillJudgement 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?
John Stuart MillStupidity is much the same all the world over. A stupid person's notions and feelings may confidently be inferred from those which prevail in the circle by which the person is surrounded. Not so with those whose opinions and feelings are an emanation from their own nature and faculties.
John Stuart MillAlmost all rich veins of original and striking speculation have been opened by systematic half-thinkers.
John Stuart MillThere is the greatest difference between presuming an opinion to be true, because, with every opportunity for contesting it, it has not been refuted, and assuming its truth for the purpose of not permitting its refutation.
John Stuart MillThose only are happy who have their minds fixed on some object other than their own happiness; on the happiness of others, on the improvement of mankind, even on some art or pursuit, followed not as a means, but as itself an ideal end. Aiming thus at something else, they find happiness by the way.
John Stuart Mill