Acquire knowledge. It enables its possessor to distinguish right from wrong; it lights the way to Heaven; it is our friend in the desert, our society in solitude, our companion when friendless; it guides us to happiness; it sustains us in misery; it is an ornament among friends and an armor against enemies.

Muhammad (570-632) Arabian merchant, prophet, founder of Islam [Mohammed]

The Sayings of Muhammad, #290 [tr. Al-Suhrawardy (1941)]