It's prudent to gain the whole world and lose your own soul. But don't forget that your soul sticks to you if you stick to it; but the world has a way of slipping through your fingers.
It is so much more difficult to live with one's body than with one's soul. One's body is so much more exacting: what it won't have it won't have, and nothing can make bitter into sweet.
It is possible for a single individual to defy the whole might of an unjust empire to save his honor, his religion, his soul and lay the foundation for the empire's fall or its regeneration.
Just as the body has its progress and decadence, so also has the mind, and, therefore, the mind is not the soul, because the soul can neither decay nor degenerate.
So, if we must give a general formula applicable to all kinds of soul, we must describe it as the first actuality [entelechy] of anatural organized body.