This sentence is false.
Now, if this sentence were to be false,
Then it would be true.
If it were to be true,
Then it would be false
Truly, this sentence is false.
False, this sentence is true.
You can ponder it
And ponder it
For the rest of your life,
But at the end of your life,
It will ring no more true,
And it will read no more false.