In suffocating the voice of conscience, passion carries with itself a restlessness of the body and the senses: it is the restlessness of the "external man." When the internal man has been reduced to silence, then passion, once it has been given freedom of action, so to speak, exhibits itself as an insistent tendency to satisfy the senses and the body.
Pope John Paul IIThe man who wishes to understand himself thoroughly must with his unrest, uncertainty, and even his weakness and sinfulness, with his life and death, draw near to Christ.
Pope John Paul IICertain elements of today's ecological crisis reveal its moral character. First among these is the indiscriminate application of advances in science and technology. Many recent discoveries have brought undeniable benefits to humanity. Indeed, they demonstrate the nobility of the human vocation to participate responsibly in God's creative action in the world. Unfortunately, it is now clear that the application of these discoveries in the fields of industry and agriculture have produced harmful long-term effects.
Pope John Paul II