What keeps me coming back

As I sit here nursing my second cold of the year wondering if all the colds and flus are worth it ( yes, elementary schools are germy places) I just received a note in my email written to me by a student's mom.  Here is the text:

My son loved the class on making thermometers and wrote in his journal,

"It was awesome! It was very, very, very epic!" 

 This is what keeps me coming back to the school each week despite all the germs!  I figure if I can just reach a few students and get them excited about science and engineering then this program is a success.