His greatest concern was to render the aesthetic appreciation of art more objective through giving weight to historical sources and demonstrable facts.

It is a demonstrable fact that kids who read more will write better.

Not everything promoted by recovery agencies is a demonstrable scientific fact, some of it is based on fashion and faith alone.

Only Thread did not stop falling, a demonstrable fact which confused many, including Readis.

Voltaire, for instance, was convinced that the existence of god was a demonstrable fact.

It is not racist to point out demonstrable facts.

That is why we must stick to the demonstrable facts in all our criticism and check every allegation, irrespective of its source.

Newspapers which confined themselves to demonstrable facts, and left readers to draw their own conclusions, were not sued.

By doing so, much of what they deny is actually demonstrable fact.

People who deny demonstrable facts deserve to be called stupid.