1. keeping it short and brief to make a point.
2. Depends on the situation.
3. Doing what your wisdom tells you to do.
4. No sorry, you're wrong.
That's what I thought when I first encountered that word. Ignorance is
not knowing something. You're not ignoring something to be rude and insulting. But, your lack of knowledge would be seen as rude and insulting if you used it.
I'd say you were ignorant about the true meaning of ignorance.
Or did you do that on purpose? One step ahead of me are you? You're weren't ignoring the fact that ignorance meant "not knowing" were you? Did I underestimate you?
5. Ah, I like your sense of humour. But why not just use a calculator? But even if you didn't have a calculator, all you need is a pen and some paper. You can zero in on the square root after 3 digit-by-digit iterations.
There you
do know what to do, even if you don't know the final answer.
6. Vice isn't necessarily a bad habit. It might be driven by a passion. A dark, evil, conniving, diabolical passion to get what you want and to do things your way. That's not a bad habit. That's being selfish. Ok, that
is kind of a "bad" habit, but not a habit that comes from weakness, but a habit that can make you strong and powerful if you play your cards right.
Vice is the opposite of virtue. They are binary opposites.
Virtue is the doing of good, vice is the doing of evil.