A mind at liberty to reflect on its own observations, if it produce nothing useful to the world, seldom fails of entertainment to itself.

Doth the Reality of sensible things consist in being perceived? or, is it something distinct from their being perceived, and that bears no relation to the mind?

The same principles which at first view lead to skepticism, pursued to a certain point, bring men back to common sense.

I do not deny the existence of material substance merely because I have no notion of it, but because the notion of it is inconsistent, or in other words, because it is repugnant that there should be a notion of it.

What is mind? No matter. What is matter? Never mind.

The world is like a board with holes in it, and the square men have got into the round holes, and the round into the square.

Man is an Animal, formidable both from his Passions and his Reason; his Passions often urging him to great Evils, and his Reason furnishing Means to achieve them. To train this Animal, and make him amenable to Order; to inure him to a Sense of Justice and Virtue, to withhold him from ill Courses by Fear, and encourage him in his Duty by Hopes; in short, to fashion and model him for Society, hath been the Aim of civil and religious Institutions; and, in all Times, the Endeavour of good and wise Men. The aptest Method for attaining this End, hath been always judged a proper Education.