Without friends, existence is empty, sterile, pointless. In a man's life, friendship is even more important than love.

Love may drive one to kill ;friendship never. Cain killed Abel because Abel was only his brother, whereas he should have also been his friend. David shines in history, not only because of his territorial conquests but also because of the true friendship: noble, and indestructible, that bound him to Jonathan. A man capable of such friendship could only be exceptional.