译文：过去的时间逝去了不可追回，今天的日子也会在转瞬之间过去。赏析：已经过去的就让它过去，不必再追悔。我们要活在当下，珍惜每一天。与其用泪水悔恨昨天，不如用汗水拼搏今天。

The worth of a state， in the long run， is the worth of the individuals composing it.

Innovation is not just about new products; it's about rethinking how we solve old problems.

In mathematics, the art of proposing a question must be held of higher value than solving it.

生活就是你梦中看到的电影。