我明白了有时候你必须勇敢一点。

有时最安静的时刻说得最响亮。

你比你想象的更强大，比你相信的更勇敢，比你知道的更聪明。

我坚信努力工作和奉献会有回报。

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.

我对超自然存在的想法，就像我对数学的想法一样产生。因此我认真对待它们。