Every person born in the USA is endowed with life, liberty, and a substantial share of the national debt.

There is as much difference between the counsel that a friend giveth, and that a man giveth himself, as there is between the counsel of a friend and of a flatterer. For there is no such flatterer as is a man's self.

The divisions of science are not like different lines that meet in one angle, but rather like the branches of trees that join in one trunk.

It cannot be that axioms established by argumentation should avail for the discovery of new works, since the subtlety of nature is greater many times over than the subtlety of argument. But axioms duly and orderly formed from particulars easily discover the way to new particulars, and thus render sciences active.

Reading maketh a full man; conference a ready man; and writing an exact man.

Since my logic aims to teach and instruct the understanding, not that it may with the slender tendrils of the mind snatch at and lay hold of abstract notions (as the common logic does), but that it may in very truth dissect nature, and discover the virtues and actions of bodies, with their laws as determined in matter; so that this science flows not merely from the nature of the mind, but also from the nature of things.

Men fear death as children fear to go in the dark; and as that natural fear in children is increased by tales, so is the other.