He was regarded as an important thinker in late twentieth-century Catholicism.

Many important political thinkers have produced their ideas outside the academy while being deeply involved in political struggles.

He has been recognized by several business publications as one of the field's most important thinkers.

He is remembered as an important and pioneer Marxist thinker on such matters.

Some of the important thinkers to emerge during and after the Renaissance include:

The ideas for such a society can be found in the writings of important German thinkers well into the modern era.

Gramsci was one of the most important Marxist thinkers in the 20th century.

People see him as an important thinker of Liberalist ideas.

Everyone in power fears new ideas, and our most important thinkers are sitting in prison.

According to Richard Falckenberg, he was "the most important systematic thinker of his country."