Who said "The only certainty is that nothing is certain."?

This quote is attributed to Spock.

The only certainty is that nothing is certain. - Spock

"The only certainty is that nothing is certain."

Spock Philosophy

"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."

"I've seen the worst humanity has to offer."

"Sometimes I wonder if the world is worth saving."

"Every choice shapes our destiny."

"Order is the foundation of a good life."