I not only think that we will tamper with Mother Nature, I think Mother wants us to.

Man, the most complicated of the animals, has a relatively short gestation period. Beyond that, he will be born, unlike most mammals, in a ridiculously helpless state.

Spare me therefore, your good intentions, your inner sensitivities, your unarticulated and unexpressed love. And spare me also these tedious psycho-historians which, by exposing the goodness inside the bad man, and the evil in the good-invariably establish a vulgar and perverse egalitarianism, as if the arrangement of what is outside and what inside makes no moral difference.

Life is to be enjoyed, not simply endured. Pleasure and goodness and joy support the pursuit of survival.

In a world where survival is always seen as a struggle, and in which some pitfalls always exist, if something brings into question our confidence in our own coping ability, it will threaten our safety.

Our imagination and reasoning powers facilitate anxiety; the anxious feeling is precipitated not by an absolute impending threat-such as the worry about an examination, a speech, travel-but rather by the symbolic and often unconscious representations.

Jealousy, which serves the struggle for survival, can deteriorate into the envy which draws defeat even from victory.