The most important thing I learned is that when you grow up ... - Billy Pilgrim

This quote is attributed to Billy Pilgrim.

"The most important thing I learned is that when you grow up you can't believe anything is true."

Billy Pilgrim Truth

Character in Slaughterhouse-Five

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More from Billy Pilgrim

"Everything is supposed to be very hush-hush"

"How nice – to feel nothing, and still get full credit for being alive"

"The most important thing I learned on Tralfamadore was that when a person dies he only appears to die"

"War has ways of keeping you busy"

"Lucy, you got some 'splainin' to do!"

"You must always be honest with the people you love."

"Truth always comes out in the end."

"Honesty is always the best policy."