你无法改变过去，但可以从中吸取教训。

Innovation is the key to staying ahead in a competitive industry.

The climate system is an angry beast, and we are poking it with sticks.

解释：百姓参加了劳动就会因劳累而去思考如何节俭律己，若经常思考这些问题，就会使自己的心地善良起来；无所事事就会放肆起来，一旦放肆，就会忘掉善良，没有善良就会滋生作恶之心。