在孤独的深处，我发现了万物的存在。

我们要以更大的决心和力度推进能源革命，加快构建清洁低碳、安全高效的能源体系。

The beauty of mathematics lies in its simplicity and universality.

"The best stories are the ones that make you feel inspired."

So given a Time Turner, I would tell my 21-year-old self that personal happiness lies in knowing that life is not a check-list of acquisition or achievement. Your qualifications, your CV, are not your life, though you will meet many people of my age and older who confuse the two. Life is difficult, and complicated, and beyond anyone’s total control, and the humility to know that will enable you to survive its vicissitudes.

我们不是从祖先那里继承地球；我们是从子孙那里借来的。