I believe in hard work and persistence.

理解量子力学不是接受它的奇异，而是拥抱它呈现的新逻辑。

You can always juice sales by going down-market, but it's hard to go back upmarket.

She's simply too strange. We can't relate to her, she speaks in a funny way, she comes from an odd place. So we can't relate to her, and when you can't relate to somebody, you don't envy them. The closer two people are -- in age, in background, in the process of identification -- the more there's a danger of envy, which is incidentally why none of you should ever go to a school reunion, because there is no stronger reference point than people one was at school with.

Don't let your past dictate who you are, but let it be a lesson that strengthens you.

解释：节俭就会产生对生产不利的因素，侈靡则造成对财富的耗费。