It is ... impossible to keep one's excellence in a little glass casket, like a jewel, to take it out whenever wanted. On the contrary, it can only be conserved by continuous and good practice.
To the Looking-Glass world it was Alice that said 'I've a sceptre in hand, I've a crown on my head. Let the Looking-Glass creatures, whatever they be, Come and dine with the Red Queen, the White Queen, and me.
Suppose the looking glass smashes, the image disappears, and the romantic figure with the green of forest depths all about it is there no longer, but only that shell of a person which is seen by other people - what an airless, shallow, bald, prominent world it becomes! A world not to be lived in. As we face each other in omnibuses and underground railways we are looking into the mirror that accounts for the vagueness, the gleam of glassiness, in our eyes.