—— 请按键盘 空白键 开始游戏 ——

自由不仅仅是随心所欲的机会;也不仅仅是在既定选项之间选择的机会。自由首先是制定可用选择的机会,对它们进行辩论——然后,才是选择的机会。
勇气是能站起来侃侃而谈。勇气也是能坐下来静静倾听。
In the context of computational learning, the concept of 'probably approximately correct' (PAC) learning provides a framework for understanding the efficiency and feasibility of learning algorithms.
Memory is the way we keep telling ourselves our stories - and telling other people a somewhat different version.