书籍是理解世界和我们自己的钥匙。
"Books are the keys to understanding the world and ourselves."
每个圣人都有过去,每个罪人都有未来。
凡事天下要考察有无的原则,必定是以众人的耳目所见所闻的实情以知有与无来作为标准的。 
The quality of your life is determined by the quality of your relationships.