行为不能脱离其适应背景。
"Behavior cannot be divorced from its adaptive context."
There will be obstacles. There will be doubters. There will be mistakes. But with hard work, there are no limits.
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。
善行本身就是一种幸福的行为。