The concept of probably approximately correct (PAC) learning has been foundational in computational learning theory.
可能近似正确(PAC)学习的概念在计算学习理论中具有基础性意义。
Land is a peculiar commodity, which is different from all others, and the quantity of it is always fixed and limited.
所以富贵的人极其奢侈,二孤儿寡妇却受饥挨饿,虽然想天下不乱,也不可能。国君若真的希望天下太平而不希望天下大乱的话,如果要吃喝,就不能不节俭。
The most difficult thing is the decision to act, the rest is merely tenacity.
文学毫无用处,正因如此它不可或缺。
你创造的世界越真实,观众就越会被吸引进去。
The greatest use of life is to spend it for something that will outlast it.