挑战在于创造既实用又富有诗意的建筑。
自由的代价是愿意在任何地方、任何时间、以完全不计后果的方式进行突然的战斗。
The best investment you can make is in yourself.
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.
大众对大小事都有无尽的求知欲---除了真正值得知道的事例之外。