Thanos didn't care about the Ancient One, Ego or Odin. First, Ego wasn't a threat or hurdle in Thanos' quest. He didn't have any Infinity Stone and he wasn't self-proclaimed protector of the universe, dimension or something.
The Ancient One may have known about Thanos' existence and perhaps even been aware that he was seeking the Infinity Stones, like many other beings no doubt, but she wouldn't have had any foresight of his ultimate victory or how rapidly he filled up the spaces in his gauntlet, and this partly accounts for why she trusts
Thanos fears only one Avenger and that is Iron Man. Thanos has been able to beat every other superhero without breaking a sweat. He has killed Loki, he has killed Gamora. He killed Vision.
In general, greetings are not capitalized in a sentence, but when used as salutations in email greetings they are capitalized. You do have the option of only capitalizing the first word in the phrase of a salutation, but the choice is ultimately up to you.
Originally Answered: What do you say when a girl says she's busy and got no time, when you ask her out? If she actually uses the words “I'm busy, I've got no time", then I would suggest you walk away and forget her.