"The ideal reasoner would, when he had once been shown a single fact in all its bearings, deduce from it not only all the chain of events which had preceded it but also all the ramifications which woul…"

"The past is never truly dead; it lives on in the present."

"It is a great thing to have a friend whose mind works like your own."

"It has long been an axiom of mine that the little things are infinitely the most important."

"Data! Data! Data! I can't make bricks without clay."