The science of constructing a commonwealth or renovating it, or reforming it, is...not to be taught a priori...That which in the first instance is prejudicial may be excellent in its remoter operation, and its excellence may rise even from the ill effects it produces in the beginning. The reverse also happens; and very plausible schemes, with very pleasing commencements, have often shameful and lamentable conclusions.

Prudence is a quality incompatible with vice, and can never be effectively enlisted in its cause.

Some degree of novelty must be one of the materials in almost every instrument which works upon the mind; and curiosity blends itself, more or less, with all our pleasures.

Whatever is fitted in any sort to excite the ideas of pain and danger, that is to say, whatever is in any sort terrible, or is conversant about terrible objects, or operates in a manner analogous to terror, is a source of the sublime; that is, it is productive of the strongest emotion which the mind is capable of feeling... When danger or pain press too nearly, they are incapable of giving any delight, and are simply terrible; but at certain distances, and with certain modifications, they may be, and they are, delightful, as we every day experience.

Knowledge of those unalterable Relations which Providence has ordained that every thing should bear to every other...To these we should conform in good Earnest; and not think to force Nature, and the whole Order of her System, by a Compliance with our Pride, and Folly, to conform to our artificial Regulations.

It is very rare, indeed, for men to be wrong in their feelings concerning public misconduct; as rare to be right in their speculations upon the cause of it. I have constantly observed that the generality of people are fifty years, at least, behind in their politics.

Tell me what are the prevailing sentiments that occupy the minds of your young peoples, and I will tell you what is to be the character of the next generation.