尽管儿童的举止有比较大的自由，但总的说来，他们给人一种非常有纪律的印象。

The challenge in computational learning theory is to understand the capabilities and limitations of learning algorithms.

The most important computer is the one that rages in our skulls and ever seeks that satisfactory external emulator. The standarization of real computers would be a disaster - and so it probably won't happen.

永远不要跟别人比幸运，我从来没想过我比别人幸运，我也许比他们更有毅力，在最困难的时候，他们熬不住了，我可以多熬一秒钟、两秒钟。