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.

The noblest works and foundations have proceeded from childless men, which have sought to express the images of their minds where those of their bodies have failed.

More dangers have deceived men than forced them.

Men suppose their reason has command over their words; still it happens that words in return exercise authority on reason

Do not wonder if the common people speak more truly than those above them: they speak more safely.

Death is a friend of ours; and he that is not ready to entertain him is not at home.

Dreams, and predictions of astrology....ought to serve but for winter talk by the fireside.