But it's - they're just such clever stories around the concept.

His most recent work centers around the concept of students learning through building projects.

The second half of the twentieth century saw little new theoretical or creative work around the concept.

I was just wrapping my head around the concept of a constant, and they might not even be that?

I couldn't seem to get my mind around the concept.

The game is heavily based around the concept of second-guessing.

I just can't get my mind around the concept.

Its entire society has evolved around the concept of speed.

And she couldn't get her mind around the concept of life without their precious little one.

I think there are a lot of misunderstandings around the concept.