When a doubt is once received, men labour rather how to keep it a doubt still, than how to solve it; and accordingly bend their wits.

That things are changed, and that nothing really perishes, and that the sum of matter remains exactly the same, is sufficiently certain.

There is a wisdom in this beyond the rules of physic: a man's own observation what he finds good of and what he finds hurt of is the best physic to preserve health.

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

By this means we presume we have established for ever, a true and legitimate marriage between the Empirical and Rational faculty; whose fastidious and unfortunate divorce and separation hath troubled and disordered the whole race and generation of mankind.

Why should a man be in love with his fetters, though of gold?

They that reverence to much old times are but a scorn to the new.