The U.S. government knew that China wanted to acquire sensitive U.S. technology and instead of implementing a policy to prevent them from acquiring the information the government all but gave them an invitation to take our equipment and designs.

I watch too much cable I admit. Day after day it gets frustrating. Yesterday I watched as someone called legislation to prevent teacher layoffs a bailout - but I know that's not a view held by many nor were the views I was frustrated about.

There's many a bestseller that could have been prevented by a good teacher.

The delusions of self-love cannot be prevented but intellectual misconceptions as to the means of achieving success may be corrected.

Our purpose in Vietnam is to prevent the success of aggression. It is not conquest it is not empire it is not foreign bases it is not domination. It is simply put just to prevent the forceful conquest of South Vietnam by North Vietnam.

Conscience is a coward and those faults it has not strength enough to prevent it seldom has justice enough to accuse.

All of us in society are supposed to believe that cruelty to animals is wrong and that it is a good thing to prevent needless suffering. So if that is true how can meat be acceptable under any but the most extraordinary circumstances such as perhaps roasting the bird who died flying into a window?

In December I agreed to extend the tax cuts for the wealthiest Americans because it was the only way I could prevent a tax hike on middle-class Americans. But we cannot afford $1 trillion worth of tax cuts for every millionaire and billionaire in our society. We can't afford it. And I refuse to renew them again.

I decry the current tendency to seek patents on algorithms. There are better ways to earn a living than to prevent other people from making use of one's contributions to computer science.

One of the things that ultimately led me to leave mathematics and go into political science was thinking I could prevent nuclear war.