The greatest happiness is to know the source of unhappiness.

解析：通过实践磨练自己。

Transparency builds trust, and trust is the foundation of any successful business.

The most effective way to destroy people is to deny and obliterate their own understanding of their history.

Digital won't kill paper; complacency will.

I'm not a politician, I'm a performer. But I have a voice and I have a platform.