Only when you combine sound intellect with emotional discipline do you get rational behavior.

When a man wants to murder a tiger he calls it sport; when a tiger wants to murder him he calls it ferocity.

I look only to the good qualities of men. Not being faultless myself, I won't presume to probe into the faults of others.

As a rational being, he now places his behavior under the control of abstractions. He will no longer tolerate being carried away by sudden impressions, by intuitions.

We've got to put a lot of money into changing behavior.

I no longer listen to what people say, I just watch what they do. Behavior never lies.