[General] ... is something and ... is something else.

[Khosro]

Pride is something and arrogance is something else.

In a grammar discussion on the forum:
"He was puzzled whether..." is something and "He wondered whether..." is something else.

Do you think my using of "something" and "something else" is correct? Is it idiomic at all? What's a more natural way to say it?

 

[The Dude]

So would I.

 

[Khosro]

So , the problem is with "and".

 

[euncu]

***neither a teacher nor a native-speaker***

This way "and" is no problem;

Pride is one thing and arrogance is another.

 

[Khosro]

***neither a teacher nor a native-speaker***

This way "and" is no problem;

Pride is one thing and arrogance is another.

I don't consider "and" to be a mistake there, but I am not sure about it, that's why I called it a problem. I put "but" in
mind.

 

[Raymott]

So , the problem is with "and".

Yes, but the problem is also with "something" rather than "one thing".
"Pride is one thing but arrogance is something else entirely." This version stresses even more what you are trying to say.
It's a trivial observation to say "A is something and B is something else". What you're trying to communicate is that even though there is a superficial resemblance between A and B, B is different from A in some quite significant ways.

 

[Khosro]

Yes, but the problem is also with "something" rather than "one thing".

This note was necessary.