Probably the most important physical ability distinguishing man from apes and other animals is his remarkable capacity of language. The ability to communicate with others of his own kind in abstract, symbolic speech is unique to man, and the evolutionist has never been able to bridge the tremendous gulf between this ability and the grunts and barks and chatterings of animals.

One of man's most vexing problems today is the conflict between energy and ecology, between conservation of jobs and conservation of nature. The need for expanded energy sources and more goods and services for mankind seems completely at cross-purposes with the maintenance of an unpolluted environment.