In heaven everyone will see the thoughts which now only God sees. There no one will wish to conceal what they think because no one will think evil. Just now our thoughts are only known by ourselves; they are hidden in darkness from our neighbor. In heaven your neighbor will know what you are thinking. Why be afraid? Now you fear to reveal your thoughts because sometimes your thoughts are wicked. In heaven you will have only good thoughts. Just as now you are willing to let others see your face, in heaven you will be willing to let them see your conscience.
—Augustine, Sermon 243.5