> I shall not today attempt further to define the kinds of material I understand to be embraced within that shorthand description ["potato crisps"], and perhaps

> I shall not today attempt further to define the kinds of material I understand to be embraced within that shorthand description ["potato crisps"], and perhaps I could never succeed in intelligibly doing so. But I know it when I see it, and the [delicious snack] involved in this case is [quite definitely] that