What keeps me going (actually there's several things, but I'll mention just a couple for the moment) is dedication to learning disciplines. During more robust times I studied martial arts, and although it was painfully slow due to my physical limitations, I kept telling myself not to give up. It took some 20 years to earn a first-degree black belt in karate, but I accomplished it.

With my condition weaker lately the karate is mostly out, so I turned myself to intellectual pursuits. I study the Japanese language every day. I think it takes me much longer than a normal person, as I mostly forget everything as soon as I learn it. But I will stick it out, looking forward to the day I can converse fluently with my Japanese friends.

Having goals like this gives me a youthful outlook on life and gives me a reason to live for tomorrow. As long as I can see some kind of daily advancement, I feel satisfied.