The despotism of custom is on the wane. We are not content to know that things are; we ask whether they ought to be.

The fatal tendency of mankind to leave off thinking about a thing when it is no longer doubtful is the cause of half their errors.

Hardly any original thoughts on mental or social subjects ever make their way among mankind or assume their proper importance in the minds even of their inventors, until aptly selected words or phrases have as it were nailed them down and held them fast.

The real advantage which truth has, consists in this, that when an opinion is true, it may be extinguished once, twice, or many times, but in the course of ages there will generally be found persons to rediscover it

The English, of all ranks and classes, are at bottom, in all their feelings, aristocrats. They have some concept of liberty, and set some value on it, but the very idea of equality is strange and offensive to them. They do not dislike to have many people above them as long as they have some below them.

Every man who says frankly and fully what he thinks is so far doing a public service. We should be grateful to him for attacking most unsparingly our most cherished opinions.

Human nature is not a machine to be built after a model, and set to do exactly the work prescribed for it, but a tree, which requires to grow and develop itself on all sides, according to the tendency of the inward forces which make it a living thing.