科学是一段旅程,每一步都很重要。
瀑布歌唱著:虽然渴者只需少许水便足够,我却乐意给与我的全部。
We must balance economic growth with environmental responsibility - they are not mutually exclusive.
自由是上帝赐予的权利。
每个人都是道德的铸造者。