"A scientifically verifiable theory of morals must be rooted in the individual's instinct to survive -- and nowhere else! -- and must correctly describe the hierarchy of survival, note the motivations at each level, and resolve all conflicts.

"We have such a theory now; we can solve any moral problem, on any level. Self-interest, love of family, duty to country, responsibility toward the human race -- we are even developing an exact ethic for extra-human relations. But all moral problems can be illustrated by one misquotation: 'Greater love hath no man than a mother cat dying to defend her kittens.' Once you understand the problem facing that cat and how she solved it, you will then be ready to examine yourself and learn how high up the moral ladder you are capable of climbing."

6.53 The right method of philosophy would be this: To say nothing except what can be said, i.e. the propositions of natural science, i.e. something that has nothing to do with philosophy: and then always, when someone else wished to say something metaphysical, to demonstrate to him that he had given no meaning to certain signs in his propositions. This method would be unsatisfying to the other -- he would not have the feeling that we were teaching him philosophy -- but it would be the only strictly correct method.

6.54 My propositions are elucidatory in this way; he who understands me finally recognizes them as senseless, when he has climbed out through them, on them, over them. (He must so to speak throw away the ladder, after he has climbed up on it.)

He must surmount these propositions; then he sees the world rightly.

There are MANY moralities, one for each society extant, of which the objective question is "do they work?" Do they support the continued existence of their societies?

It is not enough to believe that there is a single objective standard of morality, based on the corollaries of the fundamental right to one's own life. It is necessary to convince others of the "rightness" of that standard and those corollaries, and to inspire them to support and defend that standard against attack by others who hold different moralities as "right."