I have no patience with the hypothesis - often implied in tales meant to teach children to be good - that babies are born pretty much alike, and that the only agencies creating differences between boy and boy, or man and man, are steady application and moral effort.

Eugenics is the science which deals with all influences that improve the inborn qualities of a race; also with those that develop them to the utmost advantage.

Order in apparent chaos: I know of scarcely anything so apt to impress the imagination as the wonderful form of cosmic order expressed by the Law of Frequency of Error.

I frame no hypotheses.

-- Isaac Newton

Psychology has a long past, yet only a short history.

-- Hermann Ebbinghaus

Theory is fine, but it does not stop facts from existing.

-- Jean-Martin Charcot