The more you dwell in the past, the less you prepare for the future.

Nothing that you remember has survived. Better to forget.

Even in the grave， all is not lost.

有机化学现在足以让人发疯。它给我一种原始热带森林的印象，充满了最非凡的事物，一个可怕的、无尽的丛林，人们不敢进入，因为似乎没有出路。

We don't inherit the land from our ancestors; we borrow it from our children.