Half the work that is done in this world is to make things appear what they are not.

A pleasant illusion is better than a harsh reality.

What difference is there, do you think, between those in Plato's cave who can only marvel at the shadows and images of various objects, provided they are content and don't know what they miss, and the philosopher who has emerged from the cave and sees the real things?

The fundamental delusion of humanity is to suppose that I am here and you are out there.

A hallucination is a fact, not an error; what is erroneous is a judgment based upon it.

Disillusion is a natural stage that follows the holding of an illusion.