The development of formal systems has revolutionized our understanding of mathematics.

Duty is the most sublime word in our language. Do your duty in all things. You cannot do more. You should never wish to do less.

I think the best actors are the ones who are willing to take risks and not be afraid to fail.

I believe in the power of love.

I'm not angry anymore, I'm just tired.

能源贫困是我们这个时代最大的挑战之一。获得负担得起的能源应该是一项权利，而不是特权。