我们所看到的和我们所知道的之间的关系从未被确定。
The relation between what we see and what we know is never settled.
跨越万里山川,拨开云雾前进;经历百次寒暑,踏着霜雨前行。
If we don’t do something now, the world our children inherit will be much poorer than the one we were given.
骄矜自大,独断专行,招祸之源。