Sayings of the Holy Fathers:
"The eyes can distract the mind very quickly and cause it in a flash to slip into the place of sin. The eyes look upon something passionately; they fondly dwell upon the idol of beauty; in an instant it is impressed upon the mind; the soul is pleased by the sight of the idol; the mind transmits it appetite and desire to the heart, and the sin is committed without a witness, according to St. Basil. This then is what the Lord meant when He said: 'whoever looks at a woman to lust for her has already committed adultery with her in his heart' (Mt 5:28). This is why Solomon reminded us: 'Do not lust after her beauty in your heart, Nor let her allure you with her eyelids' (Prov. 6:25)."
St. Nicodemos of the Holy Mountain
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"That man is of a noble and elevated spirit who mercifully and generously scatters his gifts upon all, and rejoices when he has an opportunity of doing good and giving pleasure to everybody without thinking of being rewarded for it."
St. John of Kronstadt
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"You have not yet acquired perfect love if your regard for people is still swayed by their characters - for example, if, for some particular reason, you love one person and hate another, or if for the same reason you sometimes love and sometimes hate the same person."
St. Maximos the Confessor