Rabbi Abraham Joshua Heschel, "Yom Kippur"
We are all failures. At least one day a year we should recognize it. I have failed so often; I am sure those present here have also failed. We have much to be contrite about; we have missed opportunities. The sense of inadequacy ought to be at the very center of the day. [...]
I would strongly advise you to stress and develop this aspect, along with the aspect of contrition. To put contrition another way, develop a sense of embarrassment. The root of any religious faith is a sense of embarrassment, of inadequacy. I would cultivate a sense of embarrassment. It would be a great calamity for humanity if the sense of embarrassment disappeared, if everybody was an all-rightnik, with an answer to every problem. We have no answer to ultimate problems. We really don’t know. In this not knowing, in this sense of embarrassment, lies the key to opening the wells of creativity. Those who have no embarrassment remain sterile. We must develop this contrition or sense of embarrassment.