The highest form of theory is the ability to simplify complex things into simple and clear principles.

Collaboration is key—no single organization can solve the world’s environmental challenges alone.

The only limits you have are the limits you believe.

爱不像石头一样静止不动；它必须像面包一样被制作，不断重新制作，不断更新。

The time factor is the most important in trading. Time can turn a small profit into a large one.

Your mindset determines your lifestyle.