历史是对于未来最好的老师。历史书中的答案价值万金 。
There is no better teacher than history in determining the future……There are answers worth billions of dollars in a history book.
颜渊感叹地说：“老师的学问越仰望越觉得高耸，越钻研越觉得深厚；看着就在前面，忽然却在后面。老师步步引导，用知识丰富我，用礼法约束我，想不学都不成。
Time is money, don't waste it.
Consciousness is a process, not a substance.