Human behavior is incredibly pliable, plastic.

The Stanford prison experiment came out of class exercises in which I encouraged students to understand the dynamics of prison life.

The line between good and evil is permeable and almost anyone can be induced to cross it when pressured by situational forces.

Before I knew that a man could kill a man, because it happens all the time. Now I know that even the person with whom you've shared food, or whom you've slept, even he can kill you with no trouble. The closest neighbor can kill you with his teeth: that is what I have Learned since the genocide, and my eyes no longer gaze the same on the face of the world.

Being hurt personally triggered a curiosity about how such beliefs are formed.

After doing psychology for half a century, my passion for all of it is greater than ever.

Boys are 30 percent more likely than girls to drop out of school. In Canada, five boys drop out for every three girls. Girls outperform boys now at every level, from elementary school to graduate school.