越是往后反省,越看得清前方。

"It's important to write about difficult subjects in a way that children can understand."

译文：用责备外人的心态责备自己，用宽恕自己的心态宽恕别人。赏析：严于律己，宽以待人。严格要求自己才能服众，宽恕别人就会赢得他人的尊重。

The discovery of the accelerating expansion of the universe was a complete surprise.

写作是一种自由的形式。