Literary statements that are false as mathematics I recently wanted to use
the title of the famous short story
"Everything that Rises must Converge"
in a poem of mine.
However, the mathematician in me
insisted on changing it to
"Everything that Rises, if the rise is bounded, must Converge".
Are there other literary quotations
that are false mathematically,
and how can they be changed to make them true?
Note:
Attempts to use
"To be or not to be"
will be dealt with
most severely.
 A: From John Green's The Fault in Our Stars:

There are infinite numbers between 0 and 1. There's .1 and .12 and .112 and an infinite collection of others. Of course, there is a bigger infinite set of numbers between 0 and 2, or between 0 and a million.

The problem is that $[0,1]$, $[0,2]$ and $[0,10^6]$ all have the same cardinality of $\mathfrak{c}$, i.e. have the same number of elements :)
A: 
"Reeling and Writhing, of course, to begin with," the Mock Turtle replied; "and then the different branches of Arithmetic--Ambition, Distraction, Uglification, and Derision."

Alice's Adventures in Wonderland, by Lewis Carroll.
A: Would you count sayings as literary? If so, what about

*

*What goes up must come down.

Some would argue this was proven wrong in a way by Sputnik (or take any modern GEO satellite). A strict reading of your question would dismiss this as a physical constraint, not a false statement in a mathematical sense).
And then, the exponential function (among many others) may disagree.
A: A great example of this:

"Sir, in your otherwise beautiful poem (The Vision of Sin) there is a verse which reads 'Every moment dies a man, every moment one is born.' Obviously this cannot be true and I suggest that in the next edition you have it read 'Every moment dies a man, every moment one-and-one-sixteenth is born.' Even this value is slightly in error but should be sufficiently accurate for the purposes of poetry."
     - Charles Babbage, in a letter to Lord Tennyson

A: Perhaps my favorite is the example of The Hitchhiker's Guide to the Galaxy, a trilogy of five books.

"If a man will begin with certainties, he shall end in doubts." - Francis Bacon

This would be a very poor website were that to be true.

"There's no limit to how complicated things can get on account of one thing leading to another." - E. B. White

Okay maybe that one is correct.
A: From the Matrix revolutions:

"Everything that has a beginning has an end, Neo." -Agent Smith

Ummmm... what about the natural numbers? And the ordinal numbers? And lets not forget the cardinal numbers. Hell, even $\mathbb{R}_{\geq 0}$ is a counterexample. In fact, given any totally ordered set $T$ that lacks a greatest element, we can always adjoin a first element.
A: Hosea 1:10

Yet the number of the children of Israel shall be as the sand of the sea, which cannot be measured nor numbered

Both the children of Israel and the sand of the sea are, of course, finite sets.
As a fine grain of sand has a mass of approximately $3.5 \times 10^{-10}$ kg according to http://en.wikipedia.org/wiki/Orders_of_magnitude_%28mass%29 , it only takes about 2.5 kg of sand grains to outnumber all the people currently
alive on Earth.  Even for coarse sand, a truckload should suffice.
A: This one is rather famous:

1 Kings 7:23
Then he made the sea of cast metal. It was round, ten cubits from brim
  to brim, and five cubits high, and a line of thirty cubits measured
  its circumference.

A: The test instructions, “Draw a circle around the correct answer.” really means, “Draw a Jordan curve around the correct answer.” - or, even more accurately, “Draw an approximation of a Jordan curve around the correct answer.”
A: As I noted 
some years ago, an example is the claim by Thomas Carlyle (1795$-$1881, 
in Sartor Resartus (c.1833)) that "It is a mathematical fact that 
the casting of this pebble from my hand alters the centre of gravity 
of the universe."  In fact, this echo of John Donne's 
"if a clod be washed away by the sea, Europe is the less"
[Meditation XVII, 1624]
is not a fact of mathematics but an error in physics according to
Newton's Laws (1687): the recoil must exactly cancel out the pebble as the
"centre of gravity of the universe" continues on its unalterable course.
[Later] Proposed correction: "It is a mathematical fact that
the casting of this pebble from my hand moves the centre of gravity
of the Earth."
A: 
Two wrongs don't make a right.

Clearly this is a false statement.
If you multiply a negative (a wrong) by another negative, you get a positive (a right).
A: The adage, “If you lose an hour in the morning, you’ll be looking for it the rest of the day.”
Admittedly, the inconsistency is due simply to metaphorical usage, but still...
A: from “Animal Farm”: “...some are more equal than others”
A: from the poem “Kubla Khan”: “...through caverns measureless to man”
There are unmeasurable sets, but no cavern is unmeasurable.
A: In ordinary language, a “set” usually means an indexed set (aka “multiset”).
A: In ordinary language, a “biased” result is considered useless, but in Mathematics (Statistics), a result can be biased, but still useful.
