Pagina 250 van 657

To carry the art, however, to its highest pitch, it is necessary

that the reasoner should be able to utilise all the facts which

have come to his knowledge; and this in itself implies, as you

will readily see, a possession of all knowledge, which, even in

these days of free education and encyclopaedias, is a somewhat

rare accomplishment. It is not so impossible, however, that a man

should possess all knowledge which is likely to be useful to him

in his work, and this I have endeavoured in my case to do. If I

remember rightly, you on one occasion, in the early days of our

friendship, defined my limits in a very precise fashion."