Victor Hugo, Les Miserables

With nihilism no discussion is possible. For the logical nihilist doubts the existence of his interlocutor, and is not quite sure that he exists himself.

From his point of view it is possible that he may be to himself only a "conception of his mind."
However, he does not perceive that all he has denied he admits in a a mass by merely pronouncing the word "mind."

To sum up, no path is left open for thought by a philosophy that makes everything come to but one conclusion, the monosyllable "No."

To "No," there is but one reply: "Yes."

Nihilism has no scope. There is no nothing. Zero does not exist. Everything is something. Nothing is nothing.

Man lives by affirmation even more than he does by bread.

["Cosette," Book the Seventh, Chapter VI]