In energy, as in life, the only constant is change.

True progress is measured not just in profits, but in positive impact.

我相信讲故事有改变世界的力量。

The key ingredients of happiness could not be material or aesthetic, but must always stubbornly psychological.

The first lesson reading teaches is how to be alone.

The real contest is always between what you've done and what you're capable of doing. You measure yourself against yourself and nobody else.