" she says, “A penny for your thoughts?”

I don’t feel like sharing my thoughts, so instead I challenge the question. “Really? Is that all they’re worth? A penny?”

She sighs. “It’s just an expression, Caden.”

“Well, find out when the expression was thought up, and then adjust for inflation.”

She shakes her head. “Only you would go there, Caden.” Then she leaves me to stew in thoughts I refuse to sell. "

― Neal Shusterman , Challenger Deep