You are right, in this context, at any given moment does not fit. Since the sentence is clear that he never had a good look at her, at [her] any one time means in any given circumstances.
at any one time - under any circumstances.
I like to learn English.
Great!
I do not really understand the proposal: "Don't hate Monday. Make Monday hate you".
Well, it's not really a 'proposal' or offer. It's a motivational phrase intended to inspire the reader to have a better mood and be more productive.
It will be right or I not correctly think? "Do not hate Monday. Hate the person who created the Monday".
No, you're not thinking about it correctly. 1st, Monday is a name, so it doesn't have an article ("the") unless you're talking about a very specific Monday. 2nd, the ancient astronomer who established the planetary hours is entirely irrelevant. People don't hate Monday as a day of the moon; people hate Monday as the return to the work week and its early wakeup time after the respite of a weekend. It's not Monday that's hateful; it's work itself but, that said, people don't usually want to be unemployed.
"I hate Mondays" is just a bit of self-indulgence (when spoken to yourself) or commiseration (when shared with others) that has become a pat cliché in most of the English-speaking world. So, getting back to the heart of your question:
"Don't hate Monday. Make Monday hate you."
is the kind of thing a fairly clever manager would put up in a bathroom after a continuing education course on business psychology. The idea is to take an unhelpful and counterproductive tendency in the staff and, somehow, shunt it into a more productive direction. In this case, the lazy self-indulgence that "I hate Mondays" might condone is being converted into righteous anger against a personification. The idea is the worker, instead of slacking off, will focus on "defeating" her or his "enemy" Monday by working so hard that it's caught off-guard and worn out.
That's the idea, anyway.
The actual staff will just smirk a bit, finish their slash, and continue on with whatever they were planning on doing already.
Best Answer
or, more simply,
or just
are used to return expressions of approval.
As you suspect, they mean "you too" in most contexts.
The reason you are having trouble with the example sentence is because it doesn't seem to make much sense—unless both people have nice cars. Do they?
Note: they wouldn't ever mean "person A is also a car" but in all probability person A does have a nice car.