I'm at a place in my life where I do finally feel, at least most of the time, that I know who I am and I'm comfortable with the person that I am.
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.