Falsehood (n.) is not nothing but a being with a defect — a being which is not as it is supposed to be.
Falsehood (n.) rests on a rash assumption — that what is not, is — for without it nothing false could ever be said or believed.
Falsehood (n.) is shooting beside the mark like a bad archer: holding a memory out of line with the perception it belongs to.
Falsehood (n.) is truth's motion brought to a halt — what is held back and forced to idle, reviled by the name-giver as a kind of sleep.
Falsehood (n.) is never embraced knowingly: as Plato said, every mind is robbed of the truth against its will — the false just seemed true.
Falsehood (n.) is impossible: to speak falsely would be to say what is not, and how can anyone say something without saying something that is?
Falsehood (n.) is impossible: no one can judge what is not, and whatever one is immediately experiencing is always true.
Falsehood (n.) needs no 'nothing' to be about: 'Theaetetus flies' is about a real Theaetetus; it merely says of him things different from what is.