At a simple level, momentum is the amount of motion in one direction.

At the simplest level a word can be a label.

At the simple biographical level, much of this is very interesting.

It does not address the question you have asked but several related ones, and that too at a fairly simple level.

But yet, it would be best to begin at the simplest level.

On a simple level this was the natural pulling together of family and friends who spoke the same language.

Some things have, however, changed at a simpler and much more direct level.

On a more simple level, it is a love story about the possibilities of change.

At a simple level, this makes a lot of sense.

If she was going to talk with them, she'd have to start on a more simple level.