The existence of life is ephemeral, so cherishing the present moment is crucial.
可持续的做法不仅是一种选择,更是我们行业生存的必要条件。
The division of labour, so far as it can be introduced, occasions, in every art, a proportionable increase of the productive powers of labour.
学校不仅仅是教授数学和阅读的地方。它们是身份形成的场所,也是知识政治展开的地方。
We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard, because that goal will serve to organize and measure the best of our energies and skills, because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one which we intend to win, and the others, too.