人心私欲，故危殆。道心天理，故精微。
人心充满私欲，所以危险；道心符合天理，所以精妙。
The best way to predict the future is to create it.
The secret of joy in work is contained in one word - excellence. To know how to do something well is to enjoy it.
想要制服洋人的祸患，必先熟悉洋人的国情。