Even if they take away your work and everything that belongs to you and lock you in prison, they cannot prevent you from feeling free
"It is easy to study the physical world: we can weigh, measure and draw the contours of every element, and we readily agree about numbers and forms. But the psychic world, the inner world, is another matter. How can we map the regions of the soul and spirit? How can we measure and weigh states of consciousness or draw the contours of thoughts and feelings?
But this is precisely the advantage of the inner world: because there is nothing material in it, it is safe from external attack. If, whatever the circumstances, you learn to give priority to the inner life, to the spiritual life, no one will have any hold over your thoughts, your feelings or your beliefs. Even if they take away your work and everything that belongs to you and lock you in prison, they cannot prevent you from feeling free and from continuing to reflect, pray and experiment in your inner laboratories."