I know of nothing so pleasant to the mind,as the discovery of anything that is at once new and valuable.

I know of nothing so pleasant to the mind,as the discovery of anything that is at once new and valuable.
I know of nothing so pleasant to the mind,as the discovery of anything that is at once new and valuable.

I know of nothing so pleasant to the mind,as the discovery of anything that is at once new and valuable.
英语语序：
没有比这个更能让我高兴的了,就像突然发现新的有价值的东西.
汉语语序：
没有比发现新的有价值的东西更令我高兴了

我不知道什么那么令人愉快的事物，正如什么是一次新的和有价值的发现。

当一个新的，有意义的事物被发现时，还能有什么东西能不让我快乐呢？

没有比发现有价值的新事物更使我感到神清气爽的了~