"Every mental state is transitional."
"A key insight in computational learning theory is that the complexity of a learning problem is determined by the complexity of the hypothesis space and the amount of data available."
Change doesn't happen overnight, but every step forward is a step in the right direction.
把你的手放在滚热的炉子上一分钟,感觉起来像一小时。坐在一个漂亮姑娘身边整整一小时,感觉起来像一分钟。这就是相对论。