An Illusion (n.) does not conceal our woes but increases them, giving value to the valueless and making us feel privations we would never otherwise feel.
Illusion (n.) torments us in vain over transitory things: he fled back to her expecting the old warmth, and found a quarter of it.
An Illusion (n.) of the senses: even when I give way to it I am no longer deceived by it — I know it for what it is and despise myself.
An Illusion (n.) of others should be left them: unable to give people a taste for true good, Emile leaves them the imaginary good they are satisfied with, lest he leave them worse off.
An Illusion (n.) of perspective is necessary: if we perceived the real dimensions of things we should know nothing of space — without false appearances we would see nothing at a distance.