Lend money to an enemy, and thou will gain him, to a friend and thou will lose him.

There is nothing wrong with retirement as long as one doesn't allow it to interfere with one's work.

I would advise you to read with a pen in your hand and enter in a little book short hints of what you feel that is common or that may be useful; for this will be the best method of imprinting such portcullis in your memory.

The rotten apple spoils his companion.

Fools make feasts and wise men eat them.

Outside Independence Hall when the Constitutional Convention of 1787 ended

What signifies knowing the Names, if you know not the Natures of things.