The scientist does not study nature because it is useful; he studies it because he delights in it, and he delights in it because it is beautiful.
科学家研究自然并非因为它有用；他研究它是因为他从中获得乐趣，而他从中获得乐趣是因为它是美丽的。
We always start from zero. There is no preconceived idea.
The pain of hard work is temporary, but the regret of not trying lasts forever.