To achieve lasting literature fictional or factual a writer needs perceptive vision absorptive capacity and creative strength.

The hypothesis may be put forward to be tested by the s subsequent investigation that this development has been in large part a matter of the reciprocal interaction of new factual insights and knowledge on the one hand with changes in the theoretical system on the other.

It is probably safe to say that all the changes of factual knowledge which have led to the relativity theory resulting in a very great theoretical development are completely trivial from any point of view except their relevance to the structure of a theoretical system.

The thing that most attracts me to historical fiction is taking the factual record as far as it is known using that as scaffolding and then letting imagination build the structure that fills in those things we can never find out for sure.

In the old days... it was a basic cardinal fact that producers didn't have opinions. When I was producing natural history programmes I didn't use them as vehicles for my own opinion. They were factual programmes.

When you think of how history is revealed we know certain things to be facts at certain periods of time which turn out not to be so factual as time marches on.

I don't think any good book is based on factual experience. Bad books are about things the writer already knew before he wrote them.

Photography is more than a medium for factual communication of ideas. It is a creative art.