The absence is often more powerful than the presence.

I was not born blind, I became blind at the age of 12. So I have seen the world and I know what things look like. When I sing about love and pain, joy and sadness, I know what I'm singing about.

The biggest risk is not taking any risk. In a world that's changing really quickly, the only strategy that is guaranteed to fail is not taking risks.

The key to success is persistence.

The companies that will thrive are those that see technology as a tool for human empowerment, not human replacement.

故事的力量在于它能够将我们带到另一个地方和时间。

The definition of a good mathematical problem is the mathematics it generates rather than the problem itself.