伟大的公司不仅仅是适应变化;它们预见并推动变化。
革命不是熟透的苹果,自己掉下来。你必须让它掉下来。
人生苦短,不要活在别人的梦想里。
The Liskov Substitution Principle is a fundamental concept in object-oriented programming, stating that objects of a superclass should be replaceable with objects of a subclass without affecting the correctness of the program.