All generalizations are false, including this one.

-Mark Twain

In theory, there is no difference between theory and practice, but in practice there is.

Yogi Berra

If Serving is below you, then Leadership is beyond you.

There is nothing so practical as a good theory.

Kurt Lewin

Plans are worthless, but Planning is everything.

Dwight D. Eisenhower

Failing to plan is planning to fail.

Alan Lakein

Anybody can become angry — that is easy, but to be angry with the right person and to the right degree and at the right time and for the right purpose, and in the right way — that is not within everybody’s power and is not easy.

Aristotle

The best time to plant a tree was 20 years ago. The second best time is now.

Chinese Proverb

What gets measured, gets managed.

Peter Drucker, “The Practice of Management”, 1954

Those who know What they do tend to work harder.
Those who know Why tend to work smarter.

Simon Sinek