The instinct is not completely satisfied unless a man's whole being, mental quite as much as physical, enters into the relation. Those who have never known the deep intimacy and the intense companionship of happy mutual love have missed the best thing that life has to give; unconsciously, if not consciously, they feel this and the resulting disappointment inclines them towards envy, oppression, and cruelty.
Bertrand Russell, Marriage and Morals
intimacy, love