Peace and friendship with all mankind is our wisest policy, and I wish we may be permitted to pursue it.

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

Friendship is always a sweet responsibility, never an opportunity.

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

There is some self-interest behind every friendship. There is no friendship without self-interests. This is a bitter truth.

Real friendship, like real poetry, is extremely rare - and precious as a pearl.

Never contract friendship with a man that is not better than thyself.

The language of friendship is not words but meanings.

A friend is someone who gives you total freedom to be yourself.

Instead of loving your enemies - treat your friends a little better.