The sun raises, moon shades and life goes on. Whoever is committed to remain same, stays with his belief. Whoever is committed to evolve, also stick to his belief. Here both commitment and beliefs respectively rooted to their sources in its own essence.
However, the similarity in their decisions is that, they evolve but differently. One evolves in his ignorance and one evolves in consciousness only if he realizes himself.
More inspiration for personal growth, 5 Secrets to self-discovery.