Who said "Impossible is merely another word for unexplored."?

This quote is attributed to Spock.

Impossible is merely another word for unexplored. - Spock

"Impossible is merely another word for unexplored."

Spock Adventure

"Logic is the beginning of wisdom, not the end."

"I have been, and always shall be, your friend."

"The needs of the many outweigh the needs of the few."

"Insufficient data for meaningful answer."

"The greatest adventure is life itself."

"The adventure of life begins with a single step."

"Adventure finds you when you stop running."

"Fortune and glory, kid."