The past is a foreign country; they do things differently there.
The world is full of willing people; some willing to work, the rest willing to let them.
解释:相信命运的人,对长寿与夭折泰然自若;相信道理,相信自然发展规律的人,就对是非对错顺其自然;相信自我本心的人,就对人生顺逆处之泰然;相信个人本性的人,就对个人的安危若无其事。
The complexity of a learning problem is often determined by the size and structure of the hypothesis space.