"The past is a foreign country; they do things differently there."
"The past is not a place to live, but a place to learn from."
模型的唯一真正检验是其预测未来的能力,而未来总是不确定的。
威胁我们文明的99%的麻烦都来自于过于乐观,因此我们应该有一个更加保守的会计制度。
The only real life is the life of the mind.