遇事要再三考虑，慎重行事，第一重要的是不要自欺欺人。

The two most important days in your life are the day you are born and the day you find out why.

我的清白终于开始让我感到沉重。

To thrive in a changing world, you must be willing to adapt and innovate.

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.