The Liskov Substitution Principle is a fundamental concept in object-oriented programming, ensuring that derived classes can be used in place of their base classes without altering the correctness of the program.

云计算不仅是技术的变革，更是商业模式的变革。

新的大国的崛起总是引起现有大国的担忧，因为它威胁到现有的权力平衡。

Innovation is the specific instrument of entrepreneurship. The act that endows resources with a new capacity to create wealth.

巨大的痛苦是无声的。

艺术的目的是让灵魂变得可见。

Safest way to get what you want is to deserve what you want.

释义：男女都守持正固（坚持正确的、忠诚不改变），是天地间的大道。家人中有严君，严君是对父母的称谓。父亲遵守父道，儿子遵守子道，兄遵兄道，弟遵弟道，丈夫守夫道，妻子遵守妇道，则家道正固；家道正固则天下就会安定。