Quotes about human frailty versus the unknown

Metal! These things metal? Metal—ALIVE AND THINKING!
Drake
They were metal things with—MINDS!
Narrator
And man, an atom in the ferment, clings desperately to what to him seems stable
Narrator
Dominion over all the earth? Yes—as long as man is fit to rule; no longer.
Ventnor
The greater the mystery, the more bitterly is its verity assailed
Narrator