A chair should be judged by one's pants, a jewel by the light in a lady's eyes, a typewriter by the hovering fingers.

-Anonymous
  On good design. In Time,12  Jan.

Though ye take from a covetous man all his treasure, he has yet one jewel left: ye cannot bereave him of his covetousness.

-Milton,John
  Areopagitica: a speech for the liberty of unlicensed printing.

The general who advances without coveting fame and retreats without fearing disgrace, whose only thought is to protect the countryand do good service to his sovereign, is the jewel of the kingdom.

-SunTzu
c.500^320   BC  TheArt ofWar, ch.10,'Terrain', section 24 (translated byJames Clavell,1981).