I have no duty to be anyone's Friend and no man in the world has a duty to be mine. No claims, no shadow of necessity. Friendship is unnecessary, like philosophy, like art, like the universe itself {for God did not need to create}. It has no survival value; rather it is one of those things which give value to survival.
C.S. Lewis reflects on the nature of friendship in his book, "The Four Loves." He argues that there is no obligation for individuals to form friendships, nor is there any inherent duty to befriend others. Such relationships, while cherished, are fundamentally not required for existence. They arise from personal choice rather than necessity.
Lewis emphasizes that friendship, like art and philosophy, lacks survival value but enriches life and provides meaning. It is a voluntary connection that enhances our experiences rather than a need dictated by survival. As he notes, the universe and all its facets, including friendship, are gifts that add depth to life's journey.