All science requires mathematics. The knowledge of mathematical things is almost innate in us. This is the easiest of sciences, a fact which is obvious in that no one's brain rejects it; for laymen and people who are utterly illiterate know how to count and reckon.
I won't mention names, but in my career, the most talented people invariably are the easiest and nicest to get along with.
Some days, I know beauty techniques like it's my job, and other days I can't do my makeup for the life of me. So I find it easiest to just put on mineral veil and a little mascara and call it a day. I use Physician's Formula and Bare Minerals every day of my life.
I know that I'm not the easiest person to live with. The challenge I put on myself is so great that the person I live with feels himself challenged. I bring a lot to bear, and I don't know how not to.
The easiest way to get a reputation is to go outside the fold, shout around for a few years as a violent atheist or a dangerous radical, and then crawl back to the shelter.