Considering biological realism’s propensity for regarding human emotion in terms of its functionality, it would be all too easy to mistake this attitude as a kind of disdain for human feelings. Nothing could be further from the truth. Human emotions are as real as anything in the human experience. Furthermore, the affective experience of them must not be diminished or dismissed. It is precisely their affective effects which explain their importance and impact. Feeling them and relishing those feelings is as purely human as any possible experience can be. As will be seen, love is at the very core of being human. So, while much of what we take to be centrally human will be challenged in the theses to come, it would be a misunderstanding of biological realism to imagine that its telos is an erasure of our primordial pleasures. Indeed, the core idea of biological realism is that we need to consistently view the human experience through the lens of ultimate evolutionary purposes. And those pleasures of being human, our sentimental and loving attachments, are at the very core of our evolutionary functions. However clinically we may treat them, it is the power of affective, emotional bonds that is central to both human experience and history.