Experience shows that knowledge dies very hard once it has been obtained—the acquisition of knowledge is essentially irreversible, a truth already re… - Fred Hoyle

You haven't very much respect for my profession, have you, Professor Kingsley?"
"Since it is you who wish for frankness, I will tell you that I have not. I regard politicians rather as I regard the instruments on the dashboard of my car. They tell me what is going on in the engine of state, but they don't control it.

There may be hagglers who will dispute this statement, but if so I propose to disregard them.

We are inescapably the result of a long heritage of learning, adaptation, mutation and evolution, the product of a history which predates our birth as a biological species and stretches back over many thousand millennia... Going further back, we share a common ancestry with our fellow primates; and going still further back, we share a common ancestry with all other living creatures and plants down to the simplest microbe. The further back we go, the greater the difference from external appearances and behavior patterns which we observe today.