The end of all moral speculations is to teach us our duty; and, by proper representations of the deformity of vice and beauty of virtue, beget correspondent habits, and engage us to avoid the one, and embrace the other.

The many instances of forged miracles, and prophecies, and supernatural events, which, in all ages, have either been detected by contrary evidence, or which detect themselves by their absurdity, prove sufficiently the strong propensity of mankind to the extraordinary and marvellous, and ought reasonably to begat a suspicion against all relations of this kind.

Nothing is so convenient as a decisive argument ... which must at least silence the most arrogant bigotry and superstition, and free us from their impertinent solicitations. I flatter myself, that I have discovered an argument ... which, if just, will, with the wise and learned, be an everlasting check to all kinds of superstitious delusion, and consequently, will be useful as long as the world endures. For so long, I presume, will the accounts of miracles and prodigies be found in all history, sacred and profane.

The religious hypothesis, therefore, must be considered only as a particular method of accounting for the visible phenomena of the universe: but no just reasoner will ever presume to infer from it any single fact, and alter or add to the phenomena, in any single particular.

Great pleasures are much less frequent than great pains.

The richest genius, like the most fertile soil, when uncultivated, shoots up into the rankest weeds.

Manufacturers...gradually shift their places, leaving those countries and provinces which they have already enriched, and flying to others, whether they are allured by the cheapness of provisions and labour.