A person's genetic endowment, a product of the evolution of the species, is said to explain part of the workings of his mind and his personal history the rest.
B. F. SkinnerThe speaker does not feel the grammatical rules he is said to apply in composing sentences, and men spoke grammatically for thousands of years before anyone knew there were rules.
B. F. SkinnerWas putting a man on the moon actually easier than improving education in our public schools?
B. F. Skinner