I have always considered that the true test of a machine is its practical utility in the hands of the common laborer.

只有通过观察自己的行为，你才能发现自己真正相信什么（而不是你认为自己相信什么）。在此之前，你根本不知道自己相信什么。你太复杂了，无法理解自己。

人生苦短，何必记仇。

"Destroying things is much easier than making them."

Time does not heal all wounds; some remain, becoming part of us.

好的政策需要健全的理论和实证验证。

教育是可持续林业实践生长的种子。