I encourage everyone I know to sign an organ donor card, but if someone doesn't want to sign, that's his or her choice. If someone isn't willing to give an organ, however, why should that person be allowed to receive an organ?

Patents are like fertilizer. Applied wisely and sparingly, they can increase growth. But if you apply too many chemicals, or make patents too strong, then you can leach the land, making growth more difficult.

It would be really great if I discovered a cure for cancer, but it would only be a little bit less great if my neighbor did. So I am pretty happy when my neighbor becomes wealthier, better educated and more innovative. I feel the same about China and India.

America has the highest standard of living of any major country in the entire world. To maintain and enhance that standard of living, America should continue to embrace those qualities which have made America great: openness and dynamism. Openness to new technologies, new ideas and new people is America's greatest source of strength.

The only way to thrive is to innovate. It's that simple.

As far as wages are concerned, the only difference between immigration and birth is that birth takes longer.

More retirees, longer life expectancy, larger benefits, and fewer workers - these trends have meant substantial increases in the payroll tax. Since the social security program began, the payroll tax has increased more than 500 percent.