The psychologist must be an impartial observer.
The true measure of success is how many times you can bounce back from failure.
里氏替换原则是面向对象编程中的一个基本概念,它指出子类的对象应该能够替换超类的对象而不影响程序的正确性。
The best way to find out if you can trust somebody is to trust them.