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世界是一團偉大的火焰，我們是其中的火花。

失敗不是成功的對立面；它是成功的墊腳石。

Greatness is not about being the best. It's about being better than you were before.

The hepatitis C virus was a hidden enemy, but every hidden enemy can be found with the right tools and determination.

If ease of use was the only requirement, everyone would still be riding tricycles.

Natural experiments can provide valuable insights into economic questions.

"A book is a conversation across time."

Believe in yourself and all that you are.

The role of a leader is to create more leaders, not followers.