70. What is the best title for the passage?
A. Adventure Travel in America
B. Hunting around the Great Mountains
C Interesting Trips in the East of the USA
D. Discovery Trips in the Blue
Mountains
E
It is hard to predict how science is going
to turn out , and if it is really good science, it is impossible to predict. If
the things to be found are actually new, they must be unknown in advance You
cannot make choices on this matter. You either have science or you don't and if
you have it you have to accept the surprising and disturbing pieces of
information, along with the neat and useful bits.
The only solid piece of scientific truth
about which I feel totally confident is that we don’t know enough about nature. Indeed, I regard this as
the major discovery of the past hundred years of biology. It is, in its way, a
clear piece of news. It would have amazed the brightest minds of the 18th
century to be told by any of us how little we know and how strange seems the
way ahead . In earlier times, they either pretended to understand how things
worked or simply made up stones to give answers. Now that we have begun
exploring seriously, we are catching sight of how huge the questions are, and
how far from being answered. Because of this, we are sorry. It is not so bad
being ignorant if you
are totally ignorant; the hard thing is knowing in some detail the reality of
ignorance, the worst spots and here and there the not-so-bad spots, but no true
light at the end of the tunnel nor even any tunnels that can yet be trusted.
But we are making a beginning, and there
ought to he some satisfaction. There are probably no questions we can think up
that can’t he answered, sooner or later. Within our
limits, we should be able to work our way through to all our answers, if we
keep at it long enough, arid pay attention.
