The individual is the only reality. The further we move away from the individual toward abstract ideas about Homo sapiens, the more likely we are to fall into error.
The purpose of our lives is to be happy.
对圣贤的道理教导别人很容易，自己实践却是不容易的事。对圣贤的道理开始奋斗很容易，但坚持到底却很难。圣贤的道理与实践相结合，行仁政必本与德性。后代则相反，学问与实践不能统一，不修持自己的德性，而只管治理别人。
The urban artifact is a work of art and a historical document.
A true scientist does not seek fame or fortune, but seeks the truth.