过去总是与我们同在，它塑造了我们是谁。
"The past is always with us, and it shapes who we are."
The best way to invest is to look at what's happening in the real world and invest accordingly.
忽视环境影响的生产力指标只是会计把戏，而非真正的进步。
数学不是一项观赏性运动。