Who said "What is cannot be less or more than what it is."?

This quote is attributed to Parmenides.

What is cannot be less or more than what it is. - Parmenides

"What is cannot be less or more than what it is."

Parmenides Philosophy

Philosopher Ancient Greece 515–445

"What is, is. What is not, is not."

"Being is; not-being is not."

"One should both say and think that Being is."

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

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

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"Order is the foundation of a good life."