This theory persists among later critics, and remains solidly within the critical canon.

Various theories of distinctions between primary and secondary psychopathy remain to this day.

This theory remains at the level of speculation, although it is accepted by some scholars, including Chinese ones.

Nevertheless, the theory has remained in dispute, with the role of H. pylori still debated.

Tesla's position was soon refuted, and only the other two theories remained.

Conflicting theories remain over the origin of the universe.

Although interesting this theory remains to be proved.

That theory, of course, remains to be proved.

His theory remains we shouldn't feel restricted from wearing a sweater vest with a suit," I say.

Several other theories of massive star formation remain to be tested observationally.