In a purely philosophical sense, it must be very demanding to be German.

Until today such questions had been purely philosophical, but now matters had taken a different turn.

Mr. Friedman said he opposed the residency waiver on purely philosophical grounds.

In purely philosophical terms, the precise nature of art's links with morality have been long been questioned.

Instead of thinking he attempted to subject a purely philosophical concept, the Lens, to a mathematical analysis.

But Mordan failed to get excited at the proper places, and insisted on discussing purely philosophical matters.

On purely philosophical grounds surely both sides would have to be agnostic wouldn't they?

I don't like purely philosophical works.

In a way, it's fitting that a group devoted to exchanging purely philosophical ideas should leave almost no tangible evidence of its existence.

They moved beyond being purely philosophical to becoming major political forces after becoming involved in the cause of reform.