君子的学问，关键在于自身。外界的毁誉荣辱，不仅不会动摇其心志，反而会成为磨砺自己的机会。
The best way to predict the future is to invent it.
The future of drones belongs to those who dare to dream and take action.
理论的秘密在于，真理并不存在。
The best armor of old age is a well-spent life perfecting it.
思考是智力的劳动，梦想是智力的欢愉。