True friendship can afford true knowledge. It does not depend on darkness and ignorance.

A man's friendships are one of the best measures of his worth.

There is nothing on this earth more to be prized than true friendship.

Friendship needs no words - it is solitude delivered from the anguish of loneliness.

Friendship is the shadow of the evening, which increases with the setting sun of life.

Silences make the real conversations between friends. Not the saying but the never needing to say is what counts.

A true friend never gets in your way unless you happen to be going down.

True friendship ought never to conceal what it thinks.

Never have a companion that casts you in the shade.

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