Pyrotechnically considered, [laughing] is the fire-works of the soul.
I haven't got as much money as some folks, but I've got as much impudence as any of them, and that's the next thing to money.
Virtue does not consist in the absence of the passions, but in the control of them.
There's a lot of people in this world who spend so much time watching their health that they haven't the time to enjoy it.
[Science is] the literature of truth.
Be kind to your mother-in-law, but pay for her board at some good hotel.