Most of hope or most of fear, we issue in a half-escape:
"We believe" is sighed. I take the cup of comfort proffered thus,
Taste and try each soft ingredient, sweet infusion, and discuss
What their blending may accomplish for the cure of doubt, till—slow,
Sorrowful, but how decided! needs must I o'erturn it—so!
Cause before, effect behind me—blanks! The midway point I am,
Caused, itself—itself efficient: in that narrow space must cram
All experience—out of which there crowds conjecture manifold,
But, as knowledge, this comes only—things may be as I behold,
Or may not be, but, without me and above me, things there are;