有时候最难的事情和正确的事情是同一件事。
"Sometimes the hardest thing and the right thing are the same."
The book is a weapon against oblivion.
道德不崇高广大就不能招揽人才, 气量不宏大就不能使人安定
天赋很重要，但没有努力，它就毫无意义。
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.
人类的痛苦和快乐是相通的，无论我们来自哪里。
The foundation of every government is some principle or passion in the minds of the people.