A delusion is a belief held with strong conviction despite superior evidence to the contrary.
- No man is happy without a delusion of some kind. Delusions are as necessary to our happiness as realities.
- Christian Nestell Bovee, Intuitions and Summaries of Thought (1862), Volume I, p. 143.
- The easiest thing in the world is self-deceit; for every man believes what he wishes, though the reality is often different.
- What the Buddhists teach is to free yourself from the three great evils in life: greed — which means all kinds of craving — hatred, and delusion. But delusion is really the cause of the other two. We crave that which we delude ourselves into thinking will bring happiness; we hate those whom we delude ourselves into thinking stand to stop us from getting it.
- James P. Hogan, Paths to Otherwhere, Ch. 18 (1996)
- Adam: Nature mandates that mankind will eventually succumb to its poison. However, humans created their own poison, called medicine. It's delusional to believe you can poison Nature to avoid your fate.
- Stiles: No... It's delusional to dismiss people's deaths as "fate."
- Trauma Center: Under the Knife script by Shogo Isogai
- It is not by delusion, however exalted, that mankind can prosper, but only by unswerving courage in the pursuit of truth.
- Bertrand Russell, "The Pursuit of Truth" in The Collected Papers of Bertrand Russell (1993).
- Delusion will vanish as the light becomes more and more effulgent, load after load of ignorance will vanish, and then will come a time when all else has disappeared and the sun alone shines
- Swami Vivekananda, Pearls of Wisdom