But the sea grew rough, and their boat, though tough,
Was split into an Equation.
As they floundered about in the waves of doubt
Rose a fearful Hypothesis,
Who gibbered with glee as they sank in the sea,
And the last they saw was this:
On a rock-bound reef of Unbelief
There sat the wild Negation;
Then they sank once more and were washed ashore
At the Point of Interrogation.