To be free is not merely to cast off one's chains, but to live in a way that respects and enhances the freedom of others.

"The most personal stories are often the most universal."

The future of energy lies in balancing the needs of today with the responsibilities of tomorrow.

The rules of survival never change, whether you’re in a desert or in an office.

Psychology is the science of mental processes.

译文：事情在得意时，要防止乐极生悲，说话高兴时，要防止言中有失。赏析：物极必反，当事物到达极点时就会朝着相反的方向发展。人生得意时，要低调做人，说话忘乎所以，就会招惹是非。

The future is not a result of choices among alternative paths offered by the present, but a place that is created—created first in the mind and will, created next in activity.