Success is not final, failure is not fatal: It is the courage to continue that counts.

最好的肥料是农民的影子，没有什么能取代在田间的存在和关注。

Don't wait until everything is just right. It will never be perfect. There will always be challenges, obstacles and less than perfect conditions. So what. Get started now. With each step you take, you will grow stronger and stronger, more and more skilled, more and more self-confident and more and more successful.

好的研究在于提出正确的问题，而不仅仅是应用花哨的方法。