Understanding the weakness of human nature

The one who has come to understand the weakness of human nature has had experience of the divine power, and such a person who because of it has succeeded in some things and is eager to succeed in others never looks down on anyone. For he knows that in the same way that God has helped him and freed him from many passions and hardships, so can He help everyone when He wishes, especially those who are striving for His sake. Although for His own reasons He does not deliver all from their passions right away, still as a good and loving physician He heals in His own good time each one of those who are striving.

St. Maximus the Confessor,