It's not just the ad, but the product that must be interesting.
The difference between a dream and a goal is action.
气候变化是本世纪的战斗,我们必须赢得胜利。
后见之明对历史学家乃至回忆录作者非常有用,但遗憾的是,实践中的政治家却无法拥有。