Wise?

Why do we say a man is wise, which is a compliment but when we say "wise guy" it is meant as a slam or insult.

This saying and many others has me puzzled, well maybe not puzzled as much as it makes me wonder.

Why do we drive on a parkway but park in a drive way?

Yes, these are random thoughts that pop in my mind.

Your thoughts on these? or other sayings you'd like to discuss...

Dawn~