Saint John Damascene

Joachim and Anne, how blessed a couple! All creation is indebted to you. For at your hands the Creator was offered a gift excelling all other gifts: a chaste mother, who alone was worthy of him. Joachim and Anne, how blessed and spotless a couple! You will be known by the fruit you have borne, as the Lord says: “By their fruits you will know them.” The conduct of your life pleased God and was worthy of your daughter. For by the chaste and holy life you led together, you have fashioned a jewel of virginity: she who remained a virgin before, during, and after giving birth. She alone for all time would maintain her virginity in mind and soul as well as in body. Joachim and Anne, how chaste a couple! While leading a devout and holy life in your human nature, you gave birth to a daughter nobler than the angels, whose queen she now is. 

-- Saint John Damascene from a sermon

Saint Gregory of Nyssa

Christian perfection has but one limit, that of having none. 

-- Saint Gregory of Nyssa

Saint John of Avila

Dear brothers and sisters, I pray God may open your eyes and let you see what hidden treasures he bestows on us in the trials from which the world thinks only to flee. Shame turns into honor when we seek God's glory. Present affliction become the source of heavenly glory. To those who suffer wounds in fighting his battles God opens his arms in loving, tender friendship. 

That is why he (Christ) tells us that if we want to join him, we shall travel the way he took. It is surely not right that the Son of God should go his way on the path of shame while the sons of men walk the way of worldly honor: "The disciple is not above his teacher, nor the servant greater than his master." 

-- Saint John of Avila from a letter