There is one antidote for evil passions: the purification of our souls which takes place through the mystery of godliness. The chief act of faith in this mystery is to look to Him who suffered the passion for us. The cross is the passion, so that whoever looks to it? is not harmed by the poison of desire. To look to the cross means to render one's whole life dead and crucified to the world.
Gregory of NyssaIf we truly think of Christ as our source of holiness, we shall refrain from anything wicked or impure in thought or act and thus show ourselves to be worthy bearers of his name. For the quality of holiness is shown not by what we say but by what we do in life.
Gregory of NyssaAs no darkness can be seen by anyone surrounded by light, so no trivialities can capture the attention of anyone who has his eyes on Christ.
Gregory of Nyssa