Who am I?
This or the other?
Am I one person today, and tomorrow another?
Am I both at once? A hypocrite before others,
And before myself a contemptible woebegone weakling?
Or is something within me still like a beaten army,
Fleeing in disorder from victory already achieved?
Who am I? They mock me,
these lonely questions of mine.
Whoever I
 am, Thou knowest, O God, I am Thine.

Friedrich Bonhoeffer, Letters and Papers from Prison, 348.