机器学习的最终目标是制造能够从经验中学习并随时间提高性能的机器。
The ultimate goal of machine learning is to make machines that can learn from experience and improve their performance over time.
开始的方法是停止空谈，开始行动。
据说人无完人。又据说磨练出完美。你们对下词好吗?
种一棵树最好的时间是20年前，第二好的时间是现在。
It is sadder to find the past again and find it inadequate to the present than it is to have it elude you and remain forever a harmonious conception of memory.