Books must follow sciences, and not sciences books.

I hold every man a debtor to his profession; from the which as men of course do seek to receive countenance and profit, so ought they of duty to endeavor themselves, by way of amends, to be a help and ornament thereunto.

All authority must be out of a man's self, turned . . . either upon an art, or upon a man.

Nothing opens the heart like a true friend, to whom you may impart griefs, joys, fears, hopes...and whatever lies upon the heart.

A principal fruit of friendship, is the ease and discharge of the fullness and swellings of the heart, which passions of all kinds do cause and induce.

The human understanding when it has once adopted an opinion (either as being the received opinion or as being agreeable to itself) draws all things else to support and agree with it. And though there be a greater number and weight of instances to be found on the other side, yet these it either neglects and despises, or else by some distinction sets aside and rejects, in order that by this great and pernicious predetermination the authority of its former conclusions may remain inviolate.

For it is most true that a natural and secret hatred and aversation towards society in any man, hath somewhat of the savage beast.