“It is only that my illusion is more real to me than reality. And so do we often build our world on an error, and cry out that the universe is falling to pieces, if any one but lift a finger to replace the error by truth.”

“The world always makes the assumption that the exposure of an error is identical with the discovery of truth - that the error and truth are simply opposite. They are nothing of the sort. What the world turns to, when it is cured on one error, is usually simply another error, and maybe one worse than the first one.”

“What is earnest is not always true; on the contrary, error is often more earnest than truth.”

“Truth is contrary to our nature, not so error, and this for a very simple reason: truth demands that we should recognize ourselves as limited, error flatters us that, in one way or another, we are unlimited.”

“Error never shows itself in its naked reality, in order not to be discovered. On the contrary, it dresses elegantly, so that the unwary may be led to believe that it is more truthful than truth itself.”

“There are two ways of constructing a piece of software: One is to make it so simple that there are obviously no errors, and the other is to make it so complicated that there are no obvious errors.”