My book is raising some issues.

This from Jim in Gobles, Michigan:

"I have MS and I have recently become aware that you have MS as well. My question is this: Why don't you use your national exposure to help raise awareness for MS research and a possible cause... MS is an awful ailment, and you could do so much! Yet, you seem to do nothing!"

Karen e-mails:

“Here you have this huge platform to help those suffering from MS and cancer, diseases you know well, and you selfishly and merrily go on with your capitalist-loving show... for god's sake, where's your heart?"

Karen and Jim, I don't hide my MS from the world. I just don't think it should define who I am in this world.

Frankly the way I've collected diseases, who am I to showcase or favor any disease? All can be horrible, but all needn't define their victims.

As I write in my book, we are defined not by how we handle all that goes well, but by how we deal with all that does not.

It's not the disease that makes us a victim, Karen and Jim. It's when we become a victim to the disease.

I ask for no pity. No special treatment. I believe I help the cause precisely by not making myself a cause.

I know where you're coming from but please understand then where I'm coming from.

Thanks for writing.

Check out previous Common Sense columns and watch Neil Cavuto weekdays at 4 p.m. ET on "Your World with Cavuto."

Neil Cavuto serves as senior vice president, anchor and managing editor for both FOX News Channel (FNC) and FOX Business Network (FBN). He is anchor of FNC's Your World with Cavuto - the number one rated cable news program for the 4 p.m. timeslot - as well as the FNC Saturday show Cavuto on Business. He also hosts Cavuto on FBN weeknights at 8 p.m. In addition to anchoring daily programs and breaking news specials on FNC and FBN, Cavuto oversees business news content for both networks and FNC's weekend business shows, including Bulls & Bears, Forbes on Fox, and Cashin' In. Click here for more on Neil Cavuto.