Always look at what you have left. Never look at what you have lost.
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。
To supply an explicit moral tag to an evolving and compulsive dramatic image seems to me facile, impertinent and dishonest.
心是野生动物，它不遵守规则。
建筑师必须是一位先知...真正意义上的先知...如果他不能预见至少十年后的未来，就不要称他为建筑师。