Picture this in your mind: a paralyzed person with 20/20 vision being pushed by a blind companion with full use of his limbs. This is a metaphor of the two halves of ourselves - our mind and our strength, our head and our gut, our feelings and our will, our emotions and our commitments.
The goal of living is wholeness - getting the two halves of ourselves together so that we do what we know to be right; our behavior is guided by truth. If we are not working at this kind of maturity and wholeness all the time, we end up being morally disabled.
What do you know to be the right thing to do today? Do it without fail.