You can't manage what you don't measure, and you can't improve what you don't manage.
你无法管理你不衡量的东西，也无法改进你不管理的东西。
Learning is essentially a matter of stimulus-response connections.
知识最大的敌人不是无知，而是知识的幻觉。
Music is reflection of self. We just explain it, and then we get our checks in the mail.