Against too many writers of science fiction

Why did you lure us on like this,
Light-year on light-year, through the abyss,
Building (as though we cared for size!)
Empires that cover galaxies
If at the journey's end we find
The same old stuff we left behind,
Well-worn Tellurian stories of
Crooks, spies, conspirators, or love,
Whose setting might as well have been
The Bronx, Montmartre, or Bedinal Green?

Why should I leave this green-floored cell,
Roofed with blue air, in which we dwell,
Unless, outside its guarded gates,
Long, long desired, the Unearthly waits
Strangeness that moves us more than fear,
Beauty that stabs with tingling spear,
Or Wonder, laying on one's heart
That finger-tip at which we start
As if some thought too swift and shy
For reason's grasp had just gone by?

By and by Man will try
To get out into the sky,
Sailing far beyond the air
From Down and Here to Up and There.
Stars and sky, sky and stars
Make us feel the prison bars.

Suppose it done. Now we ride
Closed in steel, up there, outside
Through our port-holes see the vast
Heaven-scape go rushing past.
Shall we? All that meets the eye
Is sky and stars, stars and sky.

Points of light with black between
Hang like a painted scene
Motionless, no nearer there
Than on Earth, everywhere
Equidistant from our ship.
Heaven has given us the slip.

Hush, be still. Outer space
Is a concept, not a place.
Try no more. Where we are
Never can be sky or star.
From prison, in a prison, we fly;
There's no way into the sky.

All this is flashy rhetoric about loving you.
I never had a selfless thought since I was born.
I am mercenary and self-seeking through and through:
I want God, you, all friends, merely to serve my turn.

Peace, re-assurance, pleasure, are the goals I seek,
I cannot crawl one inch outside my proper skin:
I talk of love --a scholar's parrot may talk Greek--
But, self-imprisoned, always end where I begin.

Only that now you have taught me (but how late) my lack.
I see the chasm. And everything you are was making
My heart into a bridge by which I might get back
From exile, and grow man. And now the bridge is breaking.

For this I bless you as the ruin falls. The pains
You give me are more precious than all other gains.

Been piecing things together lately,
And frankly,
I'm puzzled.

It cuts me deep and to the quick
To think that you had fun with it
When all the while it was my own
My heart you played with, not a stone.