Those who fear failure are destined not to succeed.

否认或回避赞美很不礼貌。即使你认为自己尚未名副其实，也应接受了感谢对方。

经济学家的角色既是科学家，又是工程师。

大脑的活动构成了心智

The present state of the system of nature is evidently a consequence of what it was in the preceding moment, and if we conceive of an intelligence which at a given instant comprehends all the relations of the entities of this universe, it could state the respective positions, motions, and general effects of all these entities at any time in the past or future.

我们表现得好像舒适和奢华是生活的主要需求，而其实让我们快乐的唯一需要是有点热情。