Whether we are describing a king, an assassin, a thief, an honest man, a prostitute, a nun, a young girl, or a stallholder in a market, it is always ourselves that we are describing.

Do not use power to suppress opinions you think pernicious, for if you do the opinions will suppress you.

In our reasonings concerning matter of fact， there are all imaginable degrees of assurance， from the highest certainty to the lowest species of moral evidence.