For the chain of causes cannot by any force be loosed or broken, nor can nature be commanded except by being obeyed.

There was never law, or sect, or opinion did so much magnify goodness, as the Christian religion doth.

We think according to nature. We speak according to rules. We act according to custom.

Friendship maketh daylight in the understanding, out of darkness and confusion of thoughts.

Silence is the virtue of fools.

The essential form of knowledge... is nothing but a representation of truth: for the truth of being and the truth of knowing are one, differing no more than the direct beam and the beam reflected.

Medicine is a science which hath been (as we have said) more professed than laboured, and yet more laboured than advanced: the labour having been, in my judgment, rather in circle than in progression. For I find much iteration, but small addition. It considereth causes of diseases, with the occasions or impulsions; the diseases themselves, with the accidents; and the cures, with the preservation.