I think it's rarely about what you actually learn in class. It's mostly about the way that you look at things.
成功不是被给予的,而是赢得的。
"A book is a mirror: if an ape looks into it, an apostle is hardly likely to look out."
The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion.
我不完美,但我在努力。