Who said "Be yourself; everyone else is already taken."?

This quote is attributed to Lewis, David.

Be yourself; everyone else is already taken. - Lewis, David

"Be yourself; everyone else is already taken."

Lewis, David Life

Philosopher American 1941–2001

"The things we love tell us what we are."

"To be is to do."

"Knowledge is power."

"Life is what happens when you're busy making other plans."

"Life is meant to be lived with passion."

"Life is what happens when you're busy making other plans."

"Life is a journey, not a destination."

"Life's too short for regrets."