Saint Teresa of Avila (c. 1515-1582)
“In this life, then, the soul has a very bad time, for, however much it accomplishes, it is strong enough inwardly to attempt much more and this causes such strife within it that nothing it can do seems to it of any importance.”
- From Interior Castle (Seventh Mansions, chapter 4) by St. Teresa of Avila, translated by E. Allison Peers (Dover Publications, 2007).