I do not believe that the source of value is unitary — displaying apparent multiplicity only in its application to the world. I believe that value ha… - Thomas Nagel

All stages of sexual perception are varieties of identification of a person with his body. What is perceived is one's own or another's subjection to or immersion in his body. … In sexual desire and its expression the blending of involuntary response with deliberate control is extremely important. … In sexual desire the involuntary responses are combined with submission to spontaneous impulses: not only one's pulse and secretions but one's actions are taken over by the body; ideally, deliberate control is needed only to guide the expression of those impulses. … But the most characteristic feature of a specifically sexual immersion in the body is its ability to fit into the complex of mutual perception. … [S]exual desire leads to spontaneous interactions with other persons, whose bodies are asserting their sovereignty in the same way, producing involuntary reactions and spontaneous impulses in them. These reactions are perceived, and the perception of them is perceived, and that perception is in turn perceived; at each step the domination of the person by his body is reinforced, and the sexual partner becomes more possessible by physical contact, penetration [for the male], and envelopment [for the female].

The ethical commonplaces of any period include ideas that may have been radical discoveries in a previous age. This is true of modern conceptions of liberty, equality, and democracy, and we are in the midst of ethical debates which will probably result two hundred years hence in a disseminated moral sensibility that people of our time would find very unfamiliar.

There will never be [a general and complete theory of right and wrong], in my view, since the role of judgment in resolving conflicts and applying disparate claims and considerations to real life is indispensable. Two dangers can be avoided if this idea of noncomprehensive systematization is kept in mind. One is the danger of romantic defeatism, which abandons rational theory because it inevitably leaves many problems unsolved. The other is the danger of exclusionary overrationalization, which bars as irrelevant or empty all considerations that cannot be brought within the scope of a general system admitting explicitly defensible conclusions. This yields skewed results by counting only measurable or otherwise precisely describable factors, even when others are in fact relevant. The alternative is to recognize that the legitimate grounds of decision are extremely various and understood to different degrees. This has both theoretical and practical implications.