Memory is the friend of wit, but the treacherous ally of invention; there are many books that owe their success to two things; good memory of those who write them, and the bad memory of those who read them

Logic and metaphysics make use of more tools than all the rest of the sciences put together, and do the least work.

The press is the foe of rhetoric, but the friend of reason.

Secrecy is the soul of all great designs. Perhaps more has been effected by concealing our own intentions than by discovering those of our enemy.

There is nothing more imprudent than excessive prudence.

Total freedom from error is what none of us will allow to our neighbors; however we may be inclined to flirt a little with such spotless perfection ourselves.

None of us are so much praised or censured as we think.