我不害怕做自己。

出自北齐·颜之推《颜氏家训·勉学》。不管是愚人还是聪明人，总想自己见多识广，但不肯读书，这就等于想吃饱饭却懒得做饭，想穿暖却懒得缝制衣服。

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.

最好的领导者是那些最热衷于让比自己更聪明的人围绕在自己身边的人。