There is no learning without some difficulty and fumbling. If you want to keep on learning, you must keep on risking failure-all your life.

In the United States, to an unprecedented degree, the individual's social role has come to be determined not by who he is but by what he can accomplish.

Some people have greatness thrust upon them. Very few have excellence thrust upon them.

It is not easy to be crafty and winsome at the same time, and few accomplish it after the age of six.

One generalization that is supported both by research and experience is that effective two-way communication is essential to proper functioning of the leader-follower relationship.

The individual who has become a stranger to himself has lost the capacity for genuine self-renewal.

Renewal is not just innovation and change. It is also the process of bringing the results of change into line with our purposes.