It is greed to do all the talking but not to want others to do the talking after one has listened.
无人机的未来在于垂直领域的深耕。
读书学习的人要像闺中少女一样小心谨慎对待别人。做官之后如同过了门的媳妇,要使百姓能各有所养。年老辞官后如同慈祥的老太婆,要担负起教育后人的责任。