实验中的每一次失败都是离成功更近的一步。
人生在世，贵在勤劳。勤劳就不会贫乏。
The present state of the system of nature is evidently a resultant 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.