穷人的决策往往理性得令人心碎。
The decisions of the poor are often heartbreakingly rational.
The only freedom which deserves the name is that of pursuing our own good in our way， so long as we do not attempt to deprive others of theirs or impede their efforts to obtain it.
想想在“算法”和“程序”之间寻求根本区别所花费的所有精神能量。