Of course, when it comes to endorsement opportunities, not all gold medals--and for that matter, not all gold medalists--are created equal.

FORBES: Magazine Article

The key is that matter and antimatter are not, in fact, perfectly equal and opposite.

ECONOMIST: Cosmology and particle physics

If the risks in the inflation forecast were equal on the upside and the downside, this would not matter.

ECONOMIST: A la mode | The

Since the predicted decay patterns of the two mesons were a result of the ways that matter and antimatter blended in them, that suggested that those substances are not quite equal and opposite after all.

ECONOMIST: What��s the matter?