Parmenides, credited as both the Father of Logic and the Father of Metaphysics (same same)

Lived around 500 BC, meaning he's a pre-Socratic

His only surviving work, a poem we call "On Nature" (but he didn't call it that), opens with a vision, in which he rode a fiery chariot across the sky and an unnamed goddess reveals two paths to Knowledge - the way of Truth, "aletheia" ; and the way of opinion, "doxa."

Truth is all encompassing ; nothingness is an absurdity. Opinion/doxa is always false, but its still the path that mortals have to take.

I think its interesting that in this formulation, knowledge is set as higher than truth.