Capitalization is the difference between:

"I had to help my uncle Jack off a horse.." and "I had to help my uncle jack off a horse.."

LMAO for a second I thought you were talking about CAPITALISM... so I was sitting here for a minute trying to find a difference in the sentences but noticed they were identical except for proper CAPITALIZATION! HAHAHAHAHAHAHAHAHAHAHAHAHA

I just woke up and I got it,Gen.

Similiarly:
Mark Twain once said " The difference between the almost-right word and the right word is really a large matter -- it's the difference between the lightning bug and the lightning."