>>>"In my many years I have come to a conclusion that one useless man is a shame, two is a law firm and three or more is a congress." - John Adams
>>>
>>>I like this.
>>>
>>>Question. If Pro is good, and Con is bad. Then Progress is good, but what is Congress?
>>
>>Nope.
>>
>>Pro = in favor of, contra = against.
>>
>>Another similar analogy could be: if amateur is who loves to do it and does it for free, then pro is the one who doesn't but gets paid.
>>
>>What's the opposite from the following sentence: "today is a bright sunny day"?
>
>Tonight is a dark starry night.

Nope, that's a somewhat related sentence, using antipode words (btw, what's opposite from "a"? The "the"?). The opposite would be "today is not a bright sunny day". Live long and prosper :).