Open markets offer the only realistic hope of pulling billions of people in developing countries out of abject poverty, while sustaining prosperity in the industrialized world.

The revolutionary breakthrough will come with rockets that are fully and rapidly reusable. We will never conquer Mars unless we do that. It'll be too expensive. The American colonies would never have been pioneered if the ships that crossed the ocean hadn't been reusable.

It's important that we attempt to extend life beyond Earth now. It is the first time in the four billion-year history of Earth that it's been possible, and that window could be open for a long time - hopefully it is - or it could be open for a short time. We should err on the side of caution and do something now.

History teaches that war begins when governments believe the price of aggression is cheap.

History should be written as philosophy.

Of all the threats to free speech in history, the one the media give the most credibility to without question is the feminist movement, which is trying to rebrand public debate as harassment.

Yosemite has the most impressive and accessible granite big walls in the world. The rock is amazing. And because of that, it's been the mecca for climbing in the U.S. - and the world to a large degree - for all of climbing history. It's the place to test yourself against the historic routes of the past.

There is no history of mankind, there are only many histories of all kinds of aspects of human life. And one of these is the history of political power. This is elevated into the history of the world.

I believe that architecture is fundamentally a public space where people can gather and communicate, think about the history, think about the lives of human beings, or the world.

If some peoples pretend that history or geography gives them the right to subjugate other races, nations, or peoples, there can be no peace.

It takes a willful disregard of history to appreciate how white Southerners could look at the Confederate battle flag and see states' rights or a way of life or a tradition - and not one human being whipping another, which was a common occurrence.

The deliberate and deadly attacks which were carried out yesterday against our country were more than acts of terror. They were acts of war.

Skepticism is a virtue in history as well as in philosophy.

I quite like antiques. I like things that are old and the history they bring with them. I would rather fly to Morocco on an $800 ticket and buy a chair for $300 than spend $1,100 on one at Pottery Barn.

I think really, China, Chinese, I think they really have a long history of civilization, rich culture.

Indeed, history is nothing more than a tableau of crimes and misfortunes.

History is only the register of crimes and misfortunes.

This is our history - from the Transcontinental Railroad to the Hoover Dam, to the dredging of our ports and building of our most historic bridges - our American ancestors prioritized growth and investment in our nation's infrastructure.

The most talented do not always end up as celebrities, and those with less talent often do. Upsets are written into our history and occur around us every day.

Whether you like it or not, history is on our side. We will bury you!

I was always told that I was good in mathematics, and I guess my grades and standardized test scores supported that. My worst subjects were those that generally involved a lot of reading - English and history. So, having good test scores in math and mediocre ones in reading, I was naturally advised to major in engineering in college.

Judging from the main portions of the history of the world, so far, justice is always in jeopardy.

Culinary tradition is not always based on fact. Sometimes it's based on history, on habits that come out of a time when kitchens were fueled by charcoal.

You will find it will almost always be more comfortable to sit on the sidelines and critique the builders from afar. But at the end of the day, the people who make a difference, the people who shape history, are not the haters.

To correct a natural indifference I was placed half-way between misery and the sun. Misery kept me from believing that all was well under the sun, and the sun taught me that history wasn't everything.

We have not invaded anyone. We have not conquered anyone. We have not grabbed their land, their culture, their history and tried to enforce our way of life on them.

I had not expected 'A Brief History of Time' to be a best seller. It was my first popular book and aroused a great deal of interest. Initially, many people found it difficult to understand. I therefore decided to try to write a new version that would be easier to follow.

The Holocaust was an obscene period in our nation's history. I mean in this century's history. But we all lived in this century. I didn't live in this century.

If you look at the history of Notre Dame, if you hire a coach who's been successful at another college program, they're going to be ultra successful at Notre Dame because the talent will always be there.

For too long, history has imposed a binary condition on its black citizens: either nameless or renowned, menial or exceptional, passive recipients of the forces of history or superheroes who acquire mythic status not just because of their deeds but because of their scarcity.

You don't hate history, you hate the way it was taught to you in high school.

There comes a time in the life of every nation when it stands at the crossroads of history and must choose which way to go.

All in all, for someone who was immersed in, fascinated by, and dedicated to flight, I was disappointed by the wrinkle in history that had brought me along one generation late. I had missed all the great times and adventures in flight.

My favourite finds are often antique pieces with a history.

Those who weep for the happy periods which they encounter in history acknowledge what they want; not the alleviation but the silencing of misery.

I stated that Hiroshima and Nagasaki are 'among the most unspeakable crimes in history.' I took no position on just where they stand on the scale of horrors relative to Auschwitz, the bombing of Chungking, Lidice, and so on.

The truth is that the history of Mexico is a history in the image of its geography: abrupt and tortuous. Each historical period is like a plateau surrounded by tall mountains and separated from the other plateaus by precipices and divides.

My first popular book, 'A Brief History of Time,' aroused a great deal of interest, but many found it difficult to understand.

I had not expected 'A Brief History of Time' to be a best seller.

The fastest manned vehicle in history was Apollo 10. It reached 25,000 mph.

Man is not a machine that can be remodelled for quite other purposes as occasion demands, in the hope that it will go on functioning as regularly as before but in a quite different way. He carries his whole history with him; in his very structure is written the history of mankind.

90 percent of my time is spent on 10 percent of the world.

I don't think we handled the aftermath of the fall of Baghdad as well as we might have. But that's now history.

A moment comes, which comes but rarely in history, when we step out from the old to the new; when an age ends; and when the soul of a nation long suppressed finds utterance.

Live out of your imagination, not your history.

There are more sure marks of authenticity in the Bible that in any profane history.

The whole course of human history may depend on a change of heart in one solitary and even humble individual - for it is in the solitary mind and soul of the individual that the battle between good and evil is waged and ultimately won or lost.

You can embrace nostalgia and history and tradition at the same time - it has to progress or it can't survive.

The odds are always against you no matter what your previous history is. You have to overcome the tendency to relax.

When I was little, I thought my country was the best on the planet. And I grew up singing a song called 'Nothing To Envy.' And I was very proud. In school, we spent a lot of time studying the history of Kim Il-Sung, but we never learned much about the outside world, except that America, South Korea, Japan are the enemies.