It's on the strength of observation and reflection that one finds a way. So we must dig and delve unceasingly.

民族精神是法律的真正源泉。

Science has no borders, but scientists have a motherland, we must contribute to the development of national agriculture.

I want to liberate America from fear. I want people to feel free to express themselves.

寻找一切事物中积极面的习惯会改变你的生活。