Myths and science fulfill a ...

Myths and science fulfill a similar function: they both provide human beings with a representation of the world and of the forces that are supposed to govern it. They both fix the limits of what is considered as possible.
 Francois Jacob

Quotes from the same author

It is hope that gives life meaning. And hope is based on the prospect of being able one day to turn the actual world into a possible one that looks better.
 Francois Jacob
Contrary to what I once thought, scientific progress did not consist simply in observing, in accurately formulating experimental facts and drawing up a theory from them. It began with the invention of a possible world, or a fragment thereof, which was then compared by experimentation with the real world. And it was this constant dialogue between imagination and experiment that allowed one to form an increasingly fine-grained conception of what is called reality.
 Francois Jacob