Experience is a good school, but the fees are high.

I love the process of improving.

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。

In the energy sector, collaboration is key to solving the world's most pressing challenges.