“It’s not something most human beings would give a moment of consideration to, that it is possible to be living for years in a state of constant betterment. To consider that you are better today than you were yesterday or a year ago, and that you will be better still tomorrow or next week or next year. That if you are doing it right you are an organism constantly evolving toward some agreed- upon approximation of excellence. As if the arrow of improvement necessarily parallels the arrow of time, and only in one direction.”