Not only should we observe moderation with food, but we must also abstain from every other sin so that just as we fast with our stomach, we should fast with our tongue. Likewise, we should fast with our eyes; i.e. not look at agitating things, not allow your eyes freedom to roam, not to look shamelessly and without fear. Similarly, arms and legs should be restrained from doing any evil acts.
Dorotheus of GazaHe answered, "The woman whom You gave to be with me" (Gen 3:9-12), he did not say, "the woman deceived me," but "The woman whom You gave to me," as if he wanted to say: "This catastrophe has come upon me because of You." So it is, brethren, since Man is not accustomed to blame himself. He does not hesitate to consider even God as the cause of evil.
Dorotheus of GazaNo one who lies is linked to God. God is the truth. He says, 'I am the Way, the Truth and the Life' (Jn. 14:6). See how we sort ourselves out and what position we take up through lying ? clearly on the side of the evil one. If, therefore, we want to be saved, we must with all our hearts love the Truth and guard ourselves from every kind of falsehood so that we may not be separated from truth and from life.
Dorotheus of GazaSelf-indulgence takes many forms. A man may be self-indulgent in speech, in touch, in sight. From self-indulgence a man comes to idle speech and worldly talk, to buffoonery and cracking indecent jokes. There is self-indulgence in touching without necessity, making mocking signs with the hands, pushing for a place, snatching up something for oneself, approaching someone else shamelessly. All these things come from not having the fear of God in the soul and from these a man comes little by little to perfect contempt.
Dorotheus of GazaIf you cannot be merciful, at least speak as though you are a sinner. If you are not a peacemaker, at least do not be a troublemaker. If you cannot be assiduous, at least in your thought be like a sluggard. If you are not victorious, do not exalt yourself over the vanquished. If you cannot close the mouth of a man who disparages his companion, at least refrain from joining him in this.- St. Isaac the Syrian
Dorotheus of Gaza