As this body of knowledge has evolved, a much more critical job for researchers and scientists has evolved into explaining and educating policy makers and the public to the risks of global warming and the possible consequences of action or of no action.

I feel, sometimes, as the renaissance man must have felt in finding new riches at every point and in the certainty that unexplored areas of knowledge and experience await at every turn.

Indeed science alone may perhaps be sterile when pursued without an understanding of the world in which scientific knowledge is created and in which the fruits of science are used.

The increase of scientific knowledge lies not only in the occasional milestones of science, but in the efforts of the very large body of men who with love and devotion observe and study nature.

The knowledge and understanding of the world which science gives us and the magnificent opportunity which it extends to us to control and use the world for the extension of our pleasure in it has never been greater than it now is.

For example, I spent a lot of time with Reagan, both before he ran for governor and when he was running for president. As a print reporter without the cameras, I was able to really test the quality of their minds and their knowledge base.

The intellectual takes as a starting point his self and relates the world to his own sensibilities the scientist accepts an existing field of knowledge and seeks to map out the unexplored terrain.

The presentations and conceptions of the average man of the world are formed and dominated, not by the full and pure desire for knowledge as an end in itself, but by the struggle to adapt himself favourably to the conditions of life.

Without television and mass communication, that knowledge wouldn't exist. So I think it actually has the possibility of turning people into more understanding and more empathetic people.

I think education is one of the greatest tools for most kids not only to expand their book knowledge, but their ability to experience new things - I think it opens more doors than any other experience I can think of.