I regret the whole worlds that will never come into existence, the children, the grandchildren, all the human possibilities that never were and never will be.
And it's sad because it's like a surprise to people - almost an anomaly - when artists are actually refined and trained on an instrument. That's the last thing people think about.
Being busy does not always mean real work. The object of all work is production or accomplishment and to either of these ends there must be forethought, system, planning, intelligence, and honest purpose, as well as perspiration. Seeming to do is not doing.