To me, fearless is not the absence of fear. It's not being completely unafraid. To me, fearless is having fears. Fearless is having doubts. Lots of them.

The food issue is not only an economic issue, but also a political one, related to the long-term stability of the country.

The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'

在危机时刻，真正的领导力会受到考验并显现出来。