A man cannot speak to his son, but as a father; to his wife, but as a husband; to his enemy, but upon terms: whereas a friend may speak, as the case requires, and not as it sorteth with the person.

The worst men often give the best advice.

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

It's not what we eat but what we digest that makes us strong; not what we gain but what we save that makes us rich; not what we read but what we remember that makes us learned; and not what we profess but what we practice that gives us integrity.

Believing that I was born for the service of mankind, and regarding the care of the commonwealth as a kind of common property which, like the air and the water, belongs to everybody, I set myself to consider in what way mankind might be best served, and what service I was myself best fitted by nature to perform.

Many secrets of art and nature are thought by the unlearned to be magical.

Nevertheless if any skillful Servant of Nature shall bring force to bear on matter, and shall vex it and drive it to extremities as if with the purpose of reducing it to nothing, then will matter (since annihilation or true destruction is not possible except by the omnipotence of God) finding itself in these straits, turn and transform itself into strange shapes, passing from one change to another till it has gone through the whole circle and finished the period.