much that he feels it is now fit for general use.
"you may think this is a lot of work for an old man like me to have on his hands," he said with a little smile. "you may think i have too many big things - i have told you three - on my hands. but i have worked for sixty years now, and i have such a store of ideas that i can see clearly. i have concentrated on my subject. my brain works better now than it ever did when i was a young man. i am capable of far more than i was in what they call 