It is only with the heart that one can see rightly;

what is essential is invisible to the eye.

只有用心才能看清楚，
真正重要的東西，用眼睛是看不見的。

关键字:  It   is   only   with   the   heart   that   one   can   see   rightly;   what   is   essential   is   invisible   to   the   eye.