The causal approach is about understanding the mechanisms that generate the data.
艺术家必须是永恒的影子。
Life is like a bracelet...It has little jewels around it which are like the little bright moments that come along in our lives every now and then...
Prolonged contact with the computer turns mathematicians into clerks and vice versa.
聪明人的问题是，他们在愚蠢的人看来就像疯子。
数学是一种创造性的努力，就像艺术或音乐一样。
The world is full of obvious things which nobody by any chance ever observes.