But today well lived makes every yesterday a dream of happiness, and every tomorrow a vision of hope.
只有今天好好地生活,昨天才会变成幸福的回忆,明天才会成为希望的憧憬。
the necessary method of study is to group the relevant material and to take note of all possible variant forms and conditions.
应采取的研究方法是,把有关各方面的材料汇集起来,同时注意任何可能出现的异常情况和条件。