Do you try to learn something about everything or everything about something?

Question: Do you try to learn something about everything or everything about something!?
Best Answer - Chosen by Asker:

I have a theory about this!. It is very helpful to know everything about two subjects!. Hopefully one of these is what you do for a living!. The other can be your hobby!. Beyond that it is useful to know something about everything even if you don't like or enjoy it much!. This broadens your outlook and makes you a well-rounded person!!!!.

Www@QuestionHome@Com

something about everythingWww@QuestionHome@Com

I have to accept being Jack of all trades since I have failed to become master of one!.Www@QuestionHome@Com

Both on need basis!.Www@QuestionHome@Com