He was red-blooded, but at the same time his heart was clean.

Once more he found himself contrasting the honest-eyed, pure-hearted Ruth with this sensual scoffer.

There was no denying the physical appeal of the lithe, sinuous Russian; there was no gainsaying the call of the blood.

On the other hand, the American girl stood for everything his own mother exemplified in flesh and spirit.
As it is with all men, he was absolutely incapable of associating passion with the mother who bore him, or with sisters who marry and give them nieces and nephews to adore.

It was impossible, utterly impossible that they should have possessed the instincts of this woman beside him.