The most important thing is to be able to think, to be able to see, to be able to judge what you see.
解释:遵守礼制,可使国家长久,使社稷安定,让人们尊卑有别,上下有序,对后代是有益处的。
"The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart."