Question: who said ignorance is bliss?
Answer: The saying “Ignorance is bliss” originates in Thomas Gray's poem “Ode on a Distant Prospect of Eton College” (1742). The quote goes: “Where ignorance is bliss, 'tis folly to be wise.” Face it: you were better off not knowing that, weren't you? Generally speaking, ignorance is a detestable state of mind.