译文：知道的闲事和结识的闲人越多，招惹的是非烦恼就越多。赏析：人要多做事，少说话，不去结交造谣生事，说三道四，品行极差的人。

自适应控制的核心是从经验中学习并相应地调整控制器。

"The beauty of literature is that it allows us to live a thousand lives in one."

I'm sorry mama, I never meant to hurt you. I never meant to make you cry, but tonight I'm cleaning out my closet.

You don't build a business. You build people, and people build the business.