Caring for but never trying to own may be a further way to define friendship.

Friendship is always a sweet responsibility, never an opportunity.

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

Friends... they cherish one another's hopes. They are kind to one another's dreams.

No person is your friend who demands your silence, or denies your right to grow.

Friendship without self-interest is one of the rare and beautiful things of life.

Friendship, like the immortality of the soul, is too good to be believed.

A true friend is someone who is there for you when he'd rather be anywhere else.

The sincere friends of this world are as ship lights in the stormiest of nights.

A true friend is the greatest of all blessings, and that which we take the least care of all to acquire.