But instincts more compelling drove him to meet Slade on his own terms, alone and unseen by any authority.

Deep instincts drove each race to reproduce as best it could.

He hung above her, breathing hard, instinct and memories and desire driving him.

Those instincts drove him to become a boxing champion, a combat pilot and a politician.

Then instinct drove it here, to fufill the cycle of nature.

But the blind instinct to live drove him back from the rock-buttressed Gateway.

It was hurt, dying, but instinct drove it against its enemy.

Basic instincts drive the puppy to locate the subject, initially by sight but with the association of human scent.

While adolescent instinct drove him, the hard reality of the streets called for new ideals.

But sheer somatic instinct was driving him as he gasped for breath.