Who said "What is cannot fail to be, nor can being ever cease to be."?

This quote is attributed to Parmenides.

What is cannot fail to be, nor can being ever cease to be. - Parmenides

"What is cannot fail to be, nor can being ever cease to be."

Parmenides Truth

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."

"How could what is perish? How could it come to be?"

"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."