He who is detached escapes sorrow

Venerable John Climacus ~ The Ladder of Divine Ascent
Step 2 ~ On Detachment

¶7. The man who has come to hate the world has escaped sorrow. But he who has an attachment to anything visible is not yet delivered from grief. For how is it possible not to be sad at the loss of something we love? We need to have great vigilance in all things. But we must give our whole attention to this above everything else. I have seen many people in the world, who by reason of cares, worries, occupations and vigils, avoided the wild desires of their body. But after entering the monastic life, and in complete freedom from anxiety, they polluted themselves in a pitiful way by the movements of the body.