I don't know what to say.

“The tongue is the only tool that gets sharper with use”

--Washington Irving

"The true genius shudders at incompleteness - and usually prefers silence to saying something which is not everything it should be."

--Edgar Allan Poe

"Suddenly, I don't know what to say. It happens often to me. I know what I want to say, I think about whether it is what I mean, but when the moment comes to speak, I can't say it."

--Nana, Vivre Sa Vie