Psychologist Quotes and aphorisms about achievement B. F. Skinner Viktor E. Frankl ,, In a position of utter desolation, when man cannot express himself in positive action, when his onl... Barry Schwartz J. Philippe Rushton J. Philippe Rushton Angela Duckworth ,, I'm so much more gratified by my life now that I have an expertise. I wake up every day thinking ab... Nathaniel Branden Theodore Isaac Rubin Edward de Bono Kurt Lewin