Life's essence lies, not in your body, but in your conscience.
The divine spark lives in all of us, and perpetually strives towards its origin.
— Lucius Annaeus Seneca
When you see that everything around you is impermanent, then you will perceive other, permanent, and eternal things.
— Dhammapada: a book of Buddhist Wisdom
You cannot see the soul, but only the soul can truly see the essence of things.
— The Talmud
I call spirit that part of man which has independent existence and gives us the understanding of life.
— Marcus Aurelius
Let your spiritual side guide your material side, and not the other way around. In order to improve his state, a person should strive for spiritual not physical perfection.