Success always necessitates a degree of ruthlessness. Given the choice of friendship or success, I'd probably choose success.

Never explain - your friends do not need it and your enemies will not believe you anyway.

Friendship is unnecessary, like philosophy, like art... It has no survival value rather it is one of those things that give value to survival.

Friendship, of itself a holy tie, is made more sacred by adversity.

An excellent man he has no enemies and none of his friends like him.

A friend may well be reckoned the masterpiece of nature.

Love is flower like Friendship is like a sheltering tree.

Lots of people want to ride with you in the limo, but what you want is someone who will take the bus with you when the limo breaks down.

Cherish your human connections: your relationships with friends and family.

Am I not destroying my enemies when I make friends of them?