A couple of my favourites:

"A boast is a gift to an enemy"

" A good warrior is always before their environment"

"Never mind artificial intelligence - I'm waiting for artificial cunning"

Ian - Pagan Editor

"We can never obtain peace in the outer world until we make peace with ourselves."

"With realization of one's own potential and self-confidence in one's ability, one can build a better world. "

Dalai Lama