It is the secret which endows the man who knows it with such a universal power as no man has ever enjoyed since the world was made.
This secret it is the dearest wish of my heart to use for good, and I swear to you, Robert McIntyre, that if I thought it would tend to anything but good I would have done with it for ever.

No, I would neither use it myself nor would any other man learn it from my lips.

I swear it by all that is holy and solemn!" His eyes flashed as he spoke, and his voice quivered with emotion.
Standing, pale and lanky, amid his electrodes and his retorts, there was still something majestic about this man, who, amid all his stupendous good fortune, could still keep his moral sense undazzled by the glitter of his gold.

Robert's weak nature had never before realised the strength which lay in those thin, firm lips and earnest eyes.
"Surely in your hands, Mr.Haw, nothing but good can come of it," he said.
"I hope not--I pray not--most earnestly do I pray not.

I have done for you, Robert, what I might not have done for my own brother had I one, and I have done it because I believe and hope that you are a man who would not use this power, should you inherit it, for selfish ends.
But even now I have not told you all.