Even in the tropics it gets colder at night than you think. Pack warmly.
即使在热带地区，晚上的气温也比你想象的要凉。打包得暖和一点。
"La memoria es el hilo que teje la historia de los pueblos, sin ella estaríamos condenados a repetir los mismos errores."
The law, in its majestic equality, forbids the rich as well as the poor to sleep under bridges, to beg in the streets, and to steal bread.
The theory of computation is not just about solving problems, but also about understanding the limits of what can be computed.