Mathematics is not a spectator sport. You have to do it to understand it.

Spend each day trying to be a little wiser than you were when you woke up.

美是你内心的感受，它会反映在你的眼睛里。它不是物质的东西。

我们谷物生产成功的真正标准不仅在于产量，还在于我们如何平衡生产力与环境管理。

Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work. And the only way to do great work is to love what you do. If you haven't found it yet, keep looking. Don't settle. As with all matters of the heart, you'll know when you find it. And, like any great relationship, it just gets better and better as the years roll on. So keep looking until you find it. Don't settle.

Great design solves problems you didn't know you had in ways you never expected.