机器学习的最终目标是让计算机从经验中学习，并随着时间的推移提高其在任务上的表现。
The ultimate goal of machine learning is to make computers learn from experience and improve their performance on tasks over time.
行为有未能达到预期目的者，都要反过来要求自身做得更加完善。只有自己做得正，天下才会向你倾心。
The only limit to our realization of tomorrow will be our doubts of today.
人的仁慈从未削弱自由者的毅力或软化他们。一个国家不必变得残酷就可以坚强。