世界是事实的总体，而不是事物的总体。

The quality of your life is the quality of your relationships.

Only through form can chaos be conquered.

基础设施的未来在于可持续性和智能技术。

The most exciting thing about quantum computing is that it challenges our understanding of the very nature of computation itself.

世界充满了故事，但这些故事其实是一个。

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.