C H A P T E R  1

What is science ?

ALMOST in the beginning was curiosity.
Curiosity, the overwhelming desire to know, is not characteristic of dead matter.  It is also not characteristic of some forms of living organ-ism, which, for that very reason, we can scarcely bring ourselves to consider alive.
A tree does not display curiosity about its environment in any way we can recognize; nor does a sponge or an oyster.  The wind, the rain, the ocean currents bring them what is needful, and from it they take what they can.  If the chance of events is such as to bring them fire, poison, predators, or parasites, they die as stoically and as undemon-stratively as they lived.
Early in the scheme of life, however, independent motion was devel-oped by some organisms.  It meant a tremendous advance in their control of the environment.  A moving organism no longer had to wait in stolid rigidity for food to come its way; it went out after it.
This meant that adventure bad entered the world-and curiosity.  The individual that hesitated in the competitive hunt for food, that was overly conservative in its investigation, starved.  As early as that, curiosity concerning the environment was enforced as the price of survival.
The one-celled paramecium, moving about in a searching way, can-not have conscious volitions and desires in the sense that we do, but it has a drive, even if only a "simple" physical-chemical one, which causes it to behave as if it were investigating its surroundings for food.  And this "act of curiosity" is what we most easily recognize as being insepar-able from the kind of life that is most akin to ours.
As organisms grew more intricate, their sense organs multiplied and became both more complex and more delicate.  More messages of greater