There was a discussion in our house the other day about whether or not everyone is capable of being great at something. Daughter No. 2 was reading an article that suggested if your ring finger is longer than your index finger, then you are inclined to be good at math. If your index finger is longer, then you are inclined to be better at language studies. The question followed, what happens if you are good at both things? How do you find out what you are great at? I suggested maybe not everyone is great at one thing. Maybe most of us can be just good at the things we do, and that can be enough. I am good at quite a few things--I'm a pretty good cook when I set my mind to it. I am a pretty good writer, again when I set my mind to it. I am a pretty good musician and a pretty good graphic designer. I can knit a sweater, and dogs and small children love me. I'm not kidding--both are drawn to me for some reason. I am good at all of these things because I have worked at them. I collec...