You are wrong. Motivation is the manifestation of will. And it is that essential animalistic instinct that drives us to continue existing.

There is no purpose to life, it has no meaning. Knowing this the onus is upon the self to drive self forward. This is pure will, and even the least disciplined animal possesses this. Motive is raison d'etre, and becomes the primary motivator when one realizes there is no reason.

Discipline is the art of using the unreasonable to propel yourself. You don't have time to be depressed. You don't have time to be weak. These mentalities are the symptom. The illness is a lack of motivation. Thus to become yourself unreasonable and attack anything that seeks to slow you.

The truth is sad. Much wants more. It will never be enough if you are using your prime motivator to chase things, or other people. Bodily and mental perfection exist in the absolute pursuit of self improvement at all costs. But the sick thing in this, is that those who pursue self improvement over all gain the most. It is because they understand that entropy wins whenever gains are not made.

Artfully stated "If you aren't improving you're losing."