Even such an obvious idea as to observe an animal with vertigo or to rotate an animal did not occur to him, in spite of the fact that he conducted numerous vertigo experiments with human subjects and made frequent use of animal experiments.
You may call me a Klansman if you will, but, potentially, every white man is a Klansman, as far as the Negro in competition with whites socially, economically and politically is concerned, and there is no use lying.
Divide each difficulty into as many parts as is feasible and necessary to resolve it.