I have been primarily interested in how and why ordinary people do unusual things, things that seem alien to their natures. Why do good people sometimes act evil? Why do smart people sometimes do dumb or irrational things?

About This Quote

About Philip G. Zimbardo

Philip G. Zimbardo was a 20th-century American social psychologist. Philip George Zimbardo was an American psychologist and a professor at Stanford University. He was an internationally known educator, researcher, author and media personality in psychology who authored more than 500 articles, chapters, textbooks, and trade books covering a wide range of topics, including time perspective, cognitive dissonance, the psychology of evil, persuasion, cults, deindividuation, shyness, and heroism. Read more on Wikipedia →

More quotes by Philip G. Zimbardo

Related Quotes