Each age has its pleasures and its pains, and the happiest person is the one who enjoys what each age gives him without wasting his time in useless regrets. (Passage 1)

【参考答案】

每个年龄阶段都有它的欢乐和痛苦，最幸福的人会享受每个年龄阶段所给予他的，而不会把时间浪费在无用的后悔上。