The concept of computational complexity is not just about how fast we can compute, but also about understanding the limits of what can be computed.
计算复杂性的概念不仅仅是我们能计算多快，还包括理解什么是可以计算的极限。
Liberal democracy may constitute the "end point of mankind's ideological evolution" and the "final form of human government," and as such constituted the "end of history."
对舒缓的事情，要急速解决，因为思想敏锐，往往获得成功；对急迫的事情，应沉稳处理，因为急躁忙乱，常常漏洞百出。
——《北上宣言》，1924年11月