人类要学会从自然中学习。
如果你不知道，意见有什么用呢？
我回首前尘往事，犯下重罪的小笨蛋，我想跟他沟通让他明白，但我办不到，那个少年早就不见了，只剩下我垂老之躯。
The half-life of love is forever.
The value of an auction lies not just in the revenue it generates, but in the efficiency of the allocation.
Assume anyone asking for your account information for any reason is guilty of scamming you， unless proven innocent. The way to prove innocence is to call them back， or login to your account using numbers or a website that you provide， not them. Don’t release any identifying information while they are contacting you via phone， message or email. You must control the channel.
情感是心理过程的主观方面。
——《中国人之直言》（1920年4月3日）
The books that everybody admires are those that nobody reads.