Every champion was once a contender who refused to give up.

"Every line you draw is a decision, and every decision tells a story."

The reaction of weak management to weak operations is often weak accounting.

Flow is being completely involved in an activity for its own sake. The ego falls away. Time flies. Every action, movement, and thought follows inevitably from the previous one, like playing jazz. Your whole being is involved, and you're using your skills to the utmost.

To be African is to be modern - this is the central paradox we must embrace.

You can’t live in the world without an idea of the world, but it’s impossible to live in the world with your idea of the world.

艺术中没有必须，因为艺术是自由的。

预测未来的最好方法就是去创造它。

"I have come to believe that a great teacher is a great artist and that there are as few as there are any other great artists. Teaching might even be the greatest of the arts since the medium is the human mind and spirit."