Empathy vs. Sympathy

The following is a page from the website "Diffen," which compares "empathy" with "sympathy."

http://www.diffen.com/difference/Empathy_vs_Sympathy

In fact, it's not difficult to distinguish these two words.  The difference between "empathy" and "sympathy" lies in the prefixes of them.  "Em-" means "in,"  so with empathy, we are "in" another one's suffering.   We feel as if we were the suffering one.  "Sym-" means "with;" therefore, by showing sympathy, we are together with another one who is suffering.