Were you to converse with a king, you ought to be as easy and unembarrassed as with your own valet-de chambre; but yet every look,word, and action should imply the utmost respect.... You must wait till you are spoken to; you must receive, not give, the subject of conversation, and you must even take care that the given subject of such conversation do not lead you into any impropriety.

Good humor is the health of the soul, sadness is its poison.

Keep your hands clean and pure from the infamous vice of corruption, a vice so infamous that it degrades even the other vices thatmay accompany it. Accept no present whatever; let your character in that respect be transparent and without the least speck, for as avarice is the vilest and dirtiest vice in private, corruption is so in public life.

Character must be kept bright as well as clean.

I am convinced that a light supper, a good night's sleep, and a fine morning, have sometimes made a hero of the same man, who, by an indigestion, a restless night, and rainy morning, would have proved a coward.

Without any extraordinary effort of genius, I have discovered that nature was the same three thousand years ago as at present; that men were but men then as well as now; that modes and customs vary often, but that human nature is always the same. And I can no more suppose, that men were better, braver, or wiser, fifteen hundred or three thousand years ago, than I can suppose that the animals or vegetables were better than they are now.

The scholar without good breeding is a pedant; the philosopher, a cynic.