To teach isto learn twice.

Theeasiest, the most tempting, and the least creative response to conflictwithin an organization is to pretend it does notexist.

Sincerity is impossible, unless it pervades the whole being, and the pretence of it saps the very foundation of character

Worry is a circle of inefficient thoughts whirling about a point of fear.

Bythree methods we may learn wisdom: first, by reflection, which is noblest;second, imitation, which is easiest; and third by experience, which is thebitterest.

The fundamental concept in social science is Power, in thesame sense in which Energy is the fundamental concept in physics.

What is well done is done soon enough.

Undernormal conditions, most people tend to see what they want to see, hear what theywant to hear, and do what they want to do; in conflicts, their positionsbecome even more rigid and fixed.

The exercise of power is determined by thousands ofinteractions between the world of the powerful and that of the powerless, allthe more so because these worlds are never divided by a sharp line: everyonehas a small part of himself in both.

Whohath not known ill fortune, never knew himself, or his own virtue.

Reason is my philosophy, is only a harmony among irrational impulses.

Aclosed mind is like a closed book; just a block of wood.