当我停止相信自己能赢的那一天，就是我停止打网球的那一天。

解释：要量力而行，实力达得到就进攻，达不到就撤退。

We are all in the gutter, but some of us are looking at the stars.

The best way to predict the future is to create it.

【译文】古人学习的人是为了提高自己，现在学习的人是为了炫耀给别人看。

Now some advantages particular to this age are not to be denied. Boredom seems to have been vanquished. There is always something to do, but hasn’t this translated into a perpetual distraction in our lives.

The ultimate goal of machine learning is to make computers learn from experience and improve their performance on tasks over time.