“Thus natural science is not a way of knowing the real world; its value lies not in its truth but in its utility; by scientific thought we do not know nature, we dismember it in order to master it.”

“We know that there is an infinite, and we know not its nature. As we know it to be false that numbers are finite, it is therefore true that there is a numerical infinity. But we know not of what kind; it is untrue that it is even, untrue that it is odd; for the addition of a unit does not change its nature; yet it is a number, and every number is odd or even (this certainly holds of every finite number). Thus we may quite well know that there is a God without knowing what He is.”

“We risk losing what nature is if we couch its value in human terms.”

“We know the existence of the infinite without knowing its nature, because it too has extension but unlike us no limits.But we do not know either the existence or the nature of God, because he has neither extension nor limits.”

“The New Age movement, for all the validity of its protest and the value of some of its recommendations, is in truth a very old blind alley. There is a very long history to remind us of what happens when nature is our ultimate point of reference . . . . Nature knows no ethics. There is no right and wrong in nature; the controlling realities are power and fertility.”

“We generally accept that it's natural for carnivorous wild animals to kill other animals in order to live. But people don't often think (or even know) about the extraordinary and unnatural suffering that humans inflict on the animals that we freely harvest for food, with the help of modern high technology and the animal food sciences.”