His hand trembled slightly as he lighted one and the flare of the match, playing for an instant on his face, emphasized the nervous tension which he was under.
"I suppose you think it all very strange--and idiotic," he said, after a few moments.

"But we frequently do strange things, and apparently senseless ones, in scientific work.

Madmen have made the world's greatness.

Our most wonderful inventors, our greatest men of all ages, have in a way been insane--for they have been abnormal, and what is that but a certain form of insanity ?" He looked at Philip through his cigarette smoke as if expecting a reply, but Philip only wet his lips, and remained silent.
"I got six months' leave of absence," he resumed, "and set out to see the results of my experiments.

First I went to Rio, and from there to the place where the first couple had gone.