Occasionally one is startled by the quiet professionalism of someone who has been patiently working on his passion or "hobby".
What got me thinking about this was stumbling across the works of Russell Croman, an "amateur" astronomer. He has a 14-inch telescope in his back yard, with which he has taken some absolutely stunning photos. Here's one he took of the Orion Nebula:
It reminds me of an essay by L. Ron Hubbard, written in 1954, which is engraved on a plaque in my office:
Don't ever do anything as though you were an amateur.
Anything you do, do it as a Professional to Professional standards.
If you have the idea about anything you do that you just dabble in it, you will wind up with a dabble life. There'll be no satisfaction in it because there will be no real production you can be proud of.
There's more to that essay, which I try to apply to what I do. Russell Croman has certainly achieved professional results of which he can be proud.