No one can deny the excitement of visiting another world.

The factor most ignored in discussing interstellar flight is the kinetic energy that must be invested in the ship to make its tons of matter move at a substantial fraction of the speed of light.

Antimatter is not a source of energy for us, it's a method of storing energy, compact but inefficient.

If interstellar travel is as time- or energy- demanding as the above figures indicate, it is far from obvious what the motive for colonization might be.

No one can deny the excitement of visiting another world.

Years of science fiction have produced a mindset that it is human destiny to expand from Earth, to the Moon, to Mars, to the stars.

Present annual world energy consumption is about equal to the annihilation energy of 4 tons of matter.

In the past, on Earth, it has largely been to exploit foreign resources and to expand the domestic territory.

It would be a pity if, frustrated by the price of travel, we elected to become a society that never made contact, that never gave SETI a fair chance.

The sun and its retinue of planets drift as a group through the vast gulfs of space that separate the stars.

Above all, I would not expect a wise race, at great expense, to set loose an army of self-replicating robots.

The word 'romance,' according to the dictionary, means excitement, adventure, and something extremely real. Romance should last a lifetime.

The excitement level for me working on projects is really not a bit different from when I was 26.

Comics as art. I do comics as comics, and my opportunity to tell stories. Simple. Basic. Let the characters have the excitement, not the package. That's where I come from.

As soon as I started writing Julia, by which I mean while writing its first sentence, I felt a sudden, reassuring charge of excitement. I knew it was going to work.

So this is the only TV show in America where I am quite confident that you, the audience, will share my excitement when I tell you that coming up in our next segment, we have the best graph ever. Best graph ever.

It is always with excitement that I wake up in the morning wondering what my intuition will toss up to me, like gifts from the sea. I work with it and rely on it. It's my partner.

It's just a whole different thing, and it's just that my life has been a blessing, and I thank god every day for the gifts that he has given me and for my daughter and to be able to watch her grow and be a part of her joys and her excitement and what she wants to do in life.

At the moment you are no longer an observing, reflecting being; you have ceased to be aware of yourself; you exist only in that quiet, steady thrill that is so unlike any excitement that you have ever known.

When you coach as long as I did, you can't help but miss those Saturdays - dealing with the players, the game preparation, the challenges, the excitement.

The excitement of vitamins, nutrition and metabolism permeated the environment.

As Ralph's character begins to discover the political thriller aspect of the film, he falls deeper in love with his wife, so the two run together. That's the beauty of this film. It has fast pace and excitement, but it also has heart and soul.

Excitement was plentiful during my two years' service as a Pony Express rider.

I wanted to capture the excitement of house music, almost like a four-four beat, and the best way to do that was to use a language that was rhythmic and performative.

The president felt that it was important to send an ordinary citizen to experience the excitement of space travel as a representative for all Americans.

The most intense curiosity and excitement prevailed, and though the weather was uncertain, enormous masses of densely packed people lined the road, shouting and waving hats and handkerchiefs as we flew by them.

Without any intended hubris, I've lead a pretty exciting life. What I've tried to do in Mission Compromised is draw on those experiences to create a sense of excitement and realism within the story.

Dreams get you into the future and add excitement to the present.

Why is it good for football to take the excitement away from fans by overcharging them for tickets to see their team?

I'd always liked to read, but when I picked up books I wasn't getting the same kind of excitement from them that I was from going out clubbing. I wanted to get the same kind of feel.

I was out of my bed in one second, trembling with excitement, and I dashed to the door and into the adjoining room, where I could watch the streets below from the windows.

One of the people that I respect the most now, a person I think has done a heck of a lot for this world as a leader, is Margaret Thatcher. She helped create a world that offers us a lot of excitement as we look to the next century.

I don't have any particular excitement about working with any specific director or actor at this point.

There are a few directors around who I have some excitement about spending my $7 at the theatre watching their movies.

There are not a few among the disciples of charity who require, in their vocation, scarcely less excitement than the votaries of pleasure in theirs.

For me, the highest level of sexual excitement is in a monogamous relationship.

In motivating people, you've got to engage their minds and their hearts. I motivate people, I hope, by example - and perhaps by excitement, by having productive ideas to make others feel involved.

In a poem the excitement has to maintain itself. I am governed by the pull of the sentence as the pull of a fabric is governed by gravity.

Character is the ability to carry out a good resolution long after the excitement of the moment has passed.

The overall view of the human genome project has been one of great excitement and positive press, but there are people who have concerns that are quite reasonable, and they are frightened of things they don't understand.

Because of the wealth of fine music spread through the film, working on it held all the fun and excitement of attending a great concert.

The human mind is capable of excitement without the application of gross and violent stimulants; and he must have a very faint perception of its beauty and dignity who does not know this.

Faith is an excitement and an enthusiasm: it is a condition of intellectual magnificence to which we must cling as to a treasure, and not squander on our way through life in the small coin of empty words, or in exact and priggish argument.

Without leaps of imagination, or dreaming, we lose the excitement of possibilities. Dreaming, after all, is a form of planning.

Unquestionably, it was going to be highly dangerous. Yet I felt it was quite natural to jump at the task. After all, if you don't like action and excitement, you don't go into police work. And, what the hell, I figured, nobody lives forever!

To me, the excitement is in ordering a fine shotgun, going through the process that everybody who has bought one has gone through for 100 years. You order it, you make a significant down payment, and then you wait three or four years for the gun to be custom-made for you.

Money was never a big motivation for me, except as a way to keep score. The real excitement is playing the game.

It seems to me that the natural world is the greatest source of excitement; the greatest source of visual beauty; the greatest source of intellectual interest. It is the greatest source of so much in life that makes life worth living.

The excitement of learning separates youth from old age. As long as you're learning you're not old.