When you're all alone out there, on the end of the typewriter, with each new story a new appraisal by the world of whether you can still get it up or not, arrogance and self-esteem and deep breathing are all you have. It often looks like egomania. I assure you it's the bold coverup of the absolutely terrified.
Harlan Ellison (2014). “Shatterday”, p.199, Open Road Media