一本好的图画书应该完全不需要文字也能表达。
"A good picture book should work without any words at all."
The poor are not irrational; they are just as rational as anyone else, but they operate under very different constraints.
大胆梦想，敢于失败。
The challenge in computational learning theory is to understand the capabilities and limitations of learning algorithms.
The best way to predict the future is to create it.