Robert A. Heinlein Quotes on Biology
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A zygote is a gamete's way of producing more gametes. This may be the purpose of the universe.
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I now define 'moral behavior' as 'behavior that tends toward survival.' I won't argue with philosophers or theologians who choose to use the word 'moral' to mean something else, but I do not think anyone can define 'behavior that tends toward extinction' as being 'moral' without stretching the word 'moral' all out of shape.
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Selfishness is the bedrock on which all moral behavior starts and it can be immoral only when it conflicts with a higher moral imperative. An animal so poor in spirit that he won't even fight on his own behalf is already an evolutionary dead end; the best he can do for his breed is to crawl off and die, and not pass on his defective genes.
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Women seem to have almost unlimited capacity for forgiveness. (Since it is usually a man who needs forgiveness, this must be a racial survival trait.)