Nobody cares if you can't dance well. Just get up and dance. Great dancers are great because of their passion.
The causal approach is about understanding the mechanisms that generate the data.
老百姓可以长久没有财物,但不能一天没有饭吃。
物理学的美在于它能够用简单的定律解释复杂的事物。
结构应该生长,而不是被强加。