Here are a few quotes that I believe what friendship and being a friend means-
Friendship is one mind in two bodies.
Nothing but heaven itself is better than a friend who is really a friend.
A single rose can be my garden.. A single friend, my world..
Friendship is a single soul dwelling in two bodies..
You can always tell a real friend: when you made a fool of yourself he or she doesn't believe you've done a permanent job.
When we honestly ask ourselves which person in our lives mean the most to us, we often find those who, instead give us advise, solutions or cures, have chosen rather to share our pain and touch our wounds with a warm and tender hand.
A friend is one who knows you and loves you just the same.