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

To like and dislike the same things, this is what makes a solid friendship.

As iron sharpens iron, so a friend sharpens a friend.

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

Be courteous to all, but intimate with few, and let those few be well tried before you give them your confidence.

If you have one true friend you have more than your share.

Nothing but heaven itself is better than a friend who is really a friend.

My best friend is the man who in wishing me well wishes it for my sake.

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

A friend is one who knows you and loves you just the same.