Purity of heart is to will one thing.
心灵的纯洁是愿意一件事。
The mind is divided into parts that sometimes conflict. Like a rider on the back of an elephant, the conscious, reasoning part of the mind has only limited control over the automatic, emotional part.
Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.
我最好的地方就是我不是你。