Ludwig Feuerbach said this quote
“ [I]n love, man declares himself unsatisfied in his individuality taken by itself, he postulates the existence of another as a need of the heart; … the life which he has through love to be the truly human life, … The individual is defective, imperfect, weak, needy; but love is strong, perfect, contented, free from wants, self-sufficing, infinite; … friendship is a means of virtue, and more: it is … dependent however on participation. … [I]t cannot be based on perfect similarity; on the contrary, it requires diversity, for friendship rests on a desire for self-contemplation. One friend obtains through the other what he does not himself possess. … However faulty a man may be, it is a proof that there is a germ of good in him if he has worthy men for his friends. If I cannot be myself perfect, I yet at least love virtue, perfection in others. ”