Who said "What we do to children, we do to the future."?

This quote is attributed to Graff.

What we do to children, we do to the future. - Graff

"What we do to children, we do to the future."

Graff

Character in Ender's Game

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"A commander's most important job is to give orders that can be obeyed."

"Humanity does not ask us to be happy. It merely asks us to be brilliant on its behalf."

"He's too much a leader already."

"You are the hope of humanity."