Beasts kill for hunger, men for pay.
The luxury of doing good surpasses every other personal enjoyment.
Gamesters and highwaymen are generally very good to their whores, but they are very devils to their wives.
Envy's a sharper spur than pay: No author ever spar'd a brother; Wits are gamecocks to one another.
Whence is thy learning? Hath thy toil O'er books consumed the midnight oil?
Thus shadow owes its birth to light.