The most ingenious men are now agreed, that [universities] are only nurseries of prejudice, corruption, barbarism, and pedantry.

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

The method of Fluxions is the general key by help whereof the modern mathematicians unlock the secrets of Geometry, and consequently of Nature.

How often must I repeat, that I know or am conscious of my own being; and that I myself am not my ideas, but somewhat else, a thinking, active principle that perceives, knows, wills, and operates about ideas?

In short, if there were external bodies, it is impossible we should ever come to know it; and if there were not, we might have the very same reasons to think there were that we have now.

That neither our thoughts, nor passions, nor ideas formed by the imagination, exist without the mind, is what every body will allow.

There being in the make of an English mind a certain gloom and eagerness, which carries to the sad extreme; religion to fanaticism; free-thinking to atheism; liberty to rebellion.