I'm not perfect, and I don't pretend to be.
人类需要悲伤,正如需要欢乐一样。
Positive psychology is as concerned with strength as with weakness, as interested in building the best things in life as in repairing the worst.
外交是战争的延续,只不过用别的手段而已。
在数学中,真理存在于我们尚未知晓的某处,而我们唯一能希望找到它的方法就是探索。