We could use up two Eternities in learning all that is to be learned about our own world and the thousands of nations that have arisen and flourished and vanished from it. Mathematics alone would occupy me eight million years.
Mark TwainThe average man is what his environment and his superstitions have made him; and their function is to make him an ass. He can't add up three or four new circumstances together and perceive what they mean; it is beyond him. He is not capable of observing for himself; he has to get everything at second-hand. If what are miscalled the lower animals were as silly as man is, they would all perish from the earth in a year.
Mark Twain