If God is love, then hatred…

As God illumines all people equally with the light of the sun, so do those who desire to imitate God let shine an equal ray of love on all people. For wherever love disappears, hatred immediately appears in its place. And if God is love, then hatred is the devil. Therefore as one who has love has God within himself, so he who has hatred within himself nurtures the devil within himself.
–Saint Basil the Great (329-379)

A sincere heart and a meek soul…

Wherever you may be, you can pray anywhere. Only show good will, and neither place nor time will be a hindrance for you. And although you might not be bending your knees nor beating your breast, or raising your arms to heaven, but have merely displayed a fervent soul, by this you will have fulfilled everything necessary for prayer…God does not regard the place. He desires only a sincere heart and a meek soul.
–Saint Basil the Great (330-379)

Works of mercy…

The works of mercy are innumerable. Their very variety brings this advantage to those who are true Christians, that in the matter of almsgiving not only the rich and affluent but also those of average means and the poor are able to play their part. Those who are unequal in their capacity to give can be equal in the love within their hearts.
–Saint Leo the Great (c. 400-461)

Do not seek earthly glory…

Do not seek earthly glory in any matter, for it is extinguished for him who loves it. In its time it blows on a man like a strong wind, and then quickly, taking from him the fruits of his good works, it goes away from him, laughing at his foolishness.
–Saint Gennadius of Constantinople (Fifth Century)