Failure gave me an inner security that I had never attained by passing examinations. Failure taught me things about myself that I could have learned no other way. I discovered that I had a strong will, and more discipline than I had suspected; I also found out that I had friends whose value was truly above the price of rubies.

世界是一本书，不旅行的人只读了一页。

I'm not afraid to be vulnerable. That's where true strength comes from.

Collaboration between governments, businesses and society is essential to tackle climate change.