恐惧是一种习惯。我不害怕。
Mathematics is the music of reason.
"You can’t always get what you want, but sometimes you get what you need."
释义:如果田地没成熟就收获,还不如不种;如果养育的孩子不学好,还不如没有。
If you want to be successful, you have to be willing to make tough decisions.