From About You, by Dick Staub, page 103:
The Talmud tells the story of Rabbi Akiba, who on his deathbed worried aloud to his rabbi that he was a failure. His rabbi moved closer and asked why and Akiba confessed that he had not lived a life like Moses. The poor man began to cry, admitting he feared God's judgement. At this, his rabbi leaned into his ear and whispered gently, "God will not judge Akiba for not being Moses; God will judge Akiba for not being Akiba." Akiba was a man who sensed he was going to the grave with his song unsung and still in him. He had spent his life trying to be like Moses instead of simply becoming the best version of himself.