We don't have anything to lose, which is a very liberating feeling.

All I can do is follow my instincts, because I'll never please everyone.

Joy is the emotion which accompanies the fulfillment of our natures when we have lived up to our potential.

In the end, we are all alone with our own thoughts and our own fears.

事物的价值不在于它们持续的时间，而在于它们发生的强度。因此，有些时刻令人难忘，有些事情无法解释，有些人无与伦比。

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.

翻译：君子知道隐微的开始，也知道事态的彰显；也知道该柔的时候柔、该刚的时候刚，这样的君子才是万众所敬仰的人物。