The future of coal lies in sustainable and responsible mining practices.
The documenta is a mirror held up to the art world.
The greatest happiness is to transform one’s feelings into action.
The future of natural gas lies in technology and efficiency.
礼貌,并不需要花钱。用完马桶后,把马桶盖放下;上电梯时,耐心等别人出来再进去;把购物车放回指定区域;在借东西时,归还时要东西的状态要比你借的时候还要好(例如给车加满油、把物品清理干净)。
数学不是一项观赏性运动。