As Will Rogers would have said, "There is no such thing as a free variable."

未来就是永恒再加一天。

时间最伟大的治愈者。

解读：不同生活背景造就知识盲区，不能因他人不懂自己熟知之事就鄙夷，要放下傲慢，以包容开放心态交流，尊重差异，寻求共识。

Every seed planted is a vote for the kind of world we want to live in.

In mathematics, you don't understand things. You just get used to them.

You must take personal responsibility. You cannot change the circumstances, the seasons, or the wind, but you can change yourself.