In a 1966 interview, Wilson mistakenly attributed it to Karl Menninger, and added that the saying had fascinated him.
The Menninger brothers set about training analysts, to fill the vacuum that existed at that time.
He was the 2006 recipient of the National Samaritan award, joining such prestigious company as Karl Menninger, Peter Drucker, Norman Vincent Peale, Betty Ford, and Sir John Templeton.
Karl Marx | Karl Pilkington | Karl Lagerfeld | Karl G. Heider | Karl Rove | Karl Pearson | Karl May | Karl Liebknecht | Karl Friedrich Schinkel | Karl Dönitz | Karl Jenkins | Karl Stefanovic | Karl Bodmer | Karl Wilhelm Friedrich Schlegel | Karl Malone | Karl Wolf | Karl Valentin | Karl Popper | Karl Malden | Karl Kesel | Karl Barth | Karl Richard Lepsius | Karl Philipp von Wrede | Karl Kautsky | Karl Johans gate | Karl-Heinz Kämmerling | Karl | Karl Weierstrass | Karl Story | Karl Scheel |
Quoted in his references in Lifetrack Therapy are Abraham Maslow, Karl Menninger, Marie Jahoda, David Riesman amongst others.