每一首歌都是我灵魂的一部分。

The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.

"We must embrace a growth mindset, where we are constantly learning, adapting, and evolving."

缺少作恶的本能，往往使我不能做我所要做的事。

The world has the technology - either available or well advanced in the research pipeline - to feed on a sustainable basis a population of 10 billion people.