A sudden bold and unexpected question doth many times surprise a man and lay him open.

Young people are fitter to invent than to judge; fitter for execution than for counsel; and more fit for new projects than for settled business.

By far the best proof is experience.

For knowledge, too, is itself power.

When a traveler returneth home, let him not leave the countries where he hath traveled altogether behind him.

Some books should be tasted, some devoured, but only a few should be chewed and digested thoroughly.

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.