'what do you see now?

globes of red, yellow, purple.

Just a moment! And now?

My father and mother and sisters.

Yes! And now?

Knights at arms, beautiful women, kind faces.

Try this.

A field of grain-a city.

Very good! And now?

Many women with bright eyes and open lips.

Try this.

Just a goblet on table.

Oh I see! Try this lens!

Just an open space-I see nothing in particular.

Well, now?

Pine trees, a lake, a summer sky.

That's better. And now?

A book.

Read a page for me.

I can't.My eyes are carried beyond the page.

Try this lens.

Dephts of air.

Excellent! And Now?

Light, just light, making everything below it a toy world.

Very well, we'll make the glasses accordingly.'