"Of course, we are just beginning to explore the complicated questions of limits," he heard himself saying in response to a rather smug, long-winded comment from someone wearing a corduroy jacket and a beard sitting in the third row. "By limits, I am referring to our own population, to the extension of human life into prolonged senescence, as well as limits to our own consumption and exploitation, of both resources and our very nature. The question of limits is probably our most difficult one to grapple with because biologically we are designed to increase at will and acquire whatever is available. The matter is complicated further because any kind of thorough historical perspective shows that people will exploit anything they can as completely as their technology and force permit."
Another question. This one from a singularly unattractive woman near the back. He barely let her finish her sentence before he roared into his answer.
"You must understand the difference between what is visible-and thus easy to ascertain and comprehend-and what is underneath the surface, which is, in almost all cases, far more defining than something that can be touched and seen. When it comes to the question of human existence, understanding that difference is essential. All of us carry a unique genetic profile in our cells. That profile includes expressed genes, those things easily recognizable, such as eye and hair color, size of various features, et cetera, and that is called a phenotype.