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.

教育的艺术必须是引导孩子达到能够自我教育的程度。

解释：人有知识，犹如树木有枝叶，树木有了枝叶，能带给人阴凉，人有了知识，就可以为人民做更多的事。

宇宙是由数学定律支配的机器。

文学应该作为文学来评判，而不是作为社会文献。

Music transcends language barriers.

人生は、一度きりの旅だ。だからこそ、その瞬間を大切にしなければならない。