平康之中，有险陰焉；衽席之内，有鸩毒焉；衣食之间，有祸败焉。
平安之中隐藏着危险，卧席之上可能有剧毒，日常衣食小事有可能导致败落之祸。
We don't even know how strong we are until we are forced to bring that hidden strength forward. In times of tragedy, of war, of necessity, people do amazing things. The human capacity for survival and renewal is awesome.
Deep learning is a way to get computers to learn from experience.