Rocket scientists agree that we have about reached the limit of our ability to travel in space using chemical rockets. To achieve anything near the speed of light we will need a new energy source and a new propellant. Nuclear fission is not an option.

If we don't get gun-control laws in this country we are full of beans. To have the National Rifle Association rule the United States is pathetic. And I agree with Mayor Michael Bloomberg: It's time to put up or shut up about gun control for both parties.

It's the same each time with progress. First they ignore you then they say you're mad then dangerous then there's a pause and then you can't find anyone who disagrees with you.

I try to be careful because technology changes so much over the years. But some things don't change. Kids and parents have disagreements kids try to manipulate parents try to sit down with rules and regs. That part never changes.

Telephone n. An invention of the devil which abrogates some of the advantages of making a disagreeable person keep his distance.

They tell me that it will be hard to find a man strong enough to love my own strength and independence and not worry about being Mr. Diana Ross but I disagree. I know absolutely that that man is somewhere out there.

As much as I value an union of all the states I would not admit the southern states into the union unless they agreed to the discontinuance of this disgraceful trade because it would bring weakness and not strength to the union.

If you wish to appear agreeable in society you must consent to be taught many things which you know already.

I believe society has a right to defend itself just as the individual has the right to attack that with which he disagrees.

I think the debate in our society now is that people have to agree on zero-tolerance to terrorism.

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.

It is impossible to persuade a man who does not disagree but smiles.

I'm not being evasive but I am saying I'm not a scientist and I'm not directly involved in the consultation however the science must be sound it must be agreed and the consultation must be of a high quality or no one will have any confidence in the process.

Scientists worldwide agree that the reduction needed to stabilize the climate is actually more like 80 percent.

I don't know what to say to that but I have to agree with Johnny that yeah we do touch upon things that most men would rather not admit: That we feel pain we cry get sad and sometimes don't deal well with disappointment.

There was certainly less profanity in the Godfather than in the Sopranos. There was a kind of respect. It's not that I totally agreed with it but it was a great piece of art.

Our will makes constantly a sort of agreement with the world whereby if the world will continually show some respect to the will the will shall consent to be strenuous in its industry.

We may not always agree with every one of our neighbors. That's life. And it's part of living in such a diverse and dense city. But we also recognize that part of being a New Yorker is living with your neighbors in mutual respect and tolerance. It was exactly that spirit of openness and acceptance that was attacked on 9/11 2001.

I have a respect for manners as such they are a way of dealing with people you don't agree with or like.

I just think Texas and that whole Bible Belt section is so like corporate. And I don't agree with organized religion in that respect.

One of Dawkins' major gripes is against religion. I am in total agreement on that one. I abhor religion.

I'm not defined by where I came from. I never took part in the rules and hatred that sometimes go along with religion. But if my parents are happy with what they believe then I'm happy to stay out of their way. We agree to disagree.

You know I think that President Obama is a person who has a great relationship with a number of people. Colin Powell does too. I think Colin Powell is a fine American a great leader and sees things in President Obama that he agrees with. He's entitled to have his opinion.

But I have tried to go over it very carefully not merely what the evidence is but with psychoanalysts and psychologists and I think we're just about all agreed that Lincoln and Speed did not have a homosexual relationship.