How much we’ve learned so far! What’s left to know
That science or intuition yet may show?
There seems no end to thinking’s enterprise
And what our intellection may devise
As we extend investigation’s scope
Beyond our microcosmic envelope
Into the vastness of the cosmos’ void
Where only dreams have ever been deployed.
What is it that’s imperative to learn?
What is, of all, our ultimate concern?
It must be whether we exist alone
Or have companions in the twilight zone
Of distant galaxies beyond our ken
And whether we can meet such mates—and when.