How do you motivate people with disabilities?

I believe in motivating people to be the best they can be.  Like others with disabilities, I oftentimes need extra motivation because I’m so used hearing words like “no”, “you can’t”, or “you won’t”.  These words are so demoralizing and heard so often that is easy to just  give up on things that we stand for.  Here’s a question for you though: How do you motivate people with disabilities?  Do you say a kind word?  Do you encourage individuals to do things that we think cannot do?  Do you argue?  Let me know your thoughts.