Pros and cons are arguments for or against a particular issue. Pros are arguments which aim to promote the issue, while cons suggest points against it. The term has been in use since the 16th century and is a shortening of a Latin phrase, pro et contra, which means “for and against.” Considering the pros and cons of an issue is a very useful way to weigh the issue thoughtfully and reach an informed decision.
If you quit you will never get what you want, but if you keep trying you will find a way to get what you want. ('Quitters never win, winners never quit, but those who never win and never quit are idiots' is a variation accredited to Larry Kersten)
Rather you than me is an expression used when someone has something unpleasant or arduous to do. It is meant in a good natured way of expressing both sympathy and having a bit of a laugh at their expense.