This site was created – primarily – for the benefit of the science courses I teach at St. Edward’s University in Austin, TX.
Feel free to browse then contents.
The title is a Richard Feynman quote from a presentation made at the Fifteenth Annual Meeting of the National Science Teachers Association in 1966. The presentation can be read in Feynman, R. 1969. What is Science? The Physics Teacher 7(6):313-320.