It is difficult for us now to understand how it was that so many serious thinkers in those days were prophetically-minded.

Both composers, then, are serious musical thinkers who have cut a single-minded course through late 20th-century history.

Lincolnwas impressed; a fighting man who was a serious thinker as well.

He isn't engaged in what any serious thinker would call thought.

However, he was also a serious thinker and observer.

Osborn was a serious thinker on both religious and political topics.

A serious thinker needs to bring the correct ideas for this messy town!

Anyway, in the course of admiring so many serious thinkers, she became one.

Third, Milton has fallen out of popularity because he was a serious political thinker.

But you're not going to find serious thinkers on these shows.