"The history of science shows that the progress of science has constantly been hampered by the tyrannical influence of certain conceptions that finally came to be considered as dogma. For this reason, it is proper to submit periodically to a very searching examination, principles that we have come to assume without any more discussion."

"If we look at the parpens piled up on the building site or at the block of bronze, nothing about them manifests that they are suited to being a house or a statue. ... Aristotle speaks of the materials…"

"Smith was being realistic-if you give people something before they are ready they are going to mess it up. And that has happened. If he had had the opportunity to work with the people help bring them …"

"Incompossible, adj. Unable to exist if something else exists. Two things are incompossible when the world of being has scope enough for one of them, but not enough for both — as Walt Whitman's poetry …"

"Everything purposeful is meaningless, and everything meaningful is purposeless."