The short answer to the question "Does a dominant want to hurt his submissive?" is:
However, i feel this subject truly deserves a longer answer.
This is a question that has been posed to me by several of the girls i've placed at the receiving end of my sadistic cruelty. I understand why they ask it. The desire to "hurt" someone is unethical, brutal, mean, indicative of a lack of respect for the person you hurt. The submissive has always hoped when asking this question that i utilize pain to affect some other measures rather than just physical duress. After all, inflicting pain on someone else can be illegal, depending on the intent, and no girl wants to believe that after she's consented to this treatment she's ultimately become the victim of a crime.
I think the clarity in this discussion can be discovered by drawing the distinction between 'hurting someone' and 'causing them pain'. I have left my submissives' flesh bruised, scratched and bloodied. Were these signs of force purposeful or just convenient side effects from another leading agenda? No. I hit them as hard as i did to cause damage to the flesh. Did i want to injure the submissive, to maliciously send her to the hospital? Not at all. I didn't want to abuse her, but i most certainly wanted to cause pain.
Pain affords many possibilities. It is a medium that is rich and diverse, and insists upon a quick and immediate response. When you slap a leather strap across her thigh, you don't want to hear mechanized or artificial groans of suffering - lest a yelp that sounds rehearsed. You want to inflict something that genuinely shocks them, causes them to jerk their head towards you and offer you their curled, tortured brow. You want their look to connect the path of this burning sensation to your dominant position that allows you to dispense it. You want to hear a cry that is the result of your judicious sentence. You want to hear her pleading for release, you want to push her to a point of discomfort where her body fills her flesh with endorphines, exacting her from the regular droll routine of daily life.
I get off on the sounds of feminine struggle. The whimpers as they are formed through curved female lips. The grunts that express her acceptance of her irremovable bondage. The screams that roar out into the air a ballad of pure vivacity. Nothing arouses this concerto of noise like the all-immersive qualities of pain.
In the late 19th Century, when ether was discovered, the world erupted, jubiliantly declaring that humanity had conquered pain. I personally do not see this goal as ever being beneficial. Pain is as crucial to the human existence as love is. And i have found, because it has received such a poor social stigma, great feats of physical exploration can be accomplished when pain is used carefully, surgically and intelligently.