The most important single aspect of software development is to be clear about what you are trying to build.

"The past is a foreign country; they do things differently there."

网络的价值与系统连接用户数量的平方成正比。

语出西汉·桓宽《盐铁论·世务》。虽然有一片诚挚忠信的愿望，如不知道因事随机应变，那便是一条危险的，甚至会灭亡的路。