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1 " The time will come when diligent research over long periods will bring to light things which now lie hidden. A single lifetime, even though entirely devoted to the sky, would not be enough for the investigation of so vast a subject... And so this knowledge will be unfolded only through long successive ages. There will come a time when our descendants will be amazed that we did not know things that are so plain to them... Many discoveries are reserved for ages still to come, when memory of us will have been effaced. "
― Seneca , Natural Questions
2 " The living dead had taken more from us than land and loved ones. They'd robbed us of our confidence as the planet's dominant life form. We were a shaken, broken species, driven to the edge of extinction and grateful only for tomorrow with perhaps a little less suffering than today. Was this the legacy we would leave our children, a level of anxiety and self-doubt not seen since our simian ancestors cowered in the tallest trees? What kind of world would they rebuild? Would they rebuild at all? Could they continue to progress, knowing that they would be powerless to reclaim their future? And what if that future saw another rise of the living dead? Would our descendants rise to meet them in battle, or simply crumple in meek surrender and accept what they believe to be their inevitable extinction? For this alone, we had to reclaim our planet. We had to prove to ourselves that we could do it, and leave that proof as this war's greatest monument. The long, hard road back to humanity, or the regressive ennui of Earth's once-proud primates. That was the choice, and it had to be made now. "
― Max Brooks , World War Z: An Oral History of the Zombie War
3 " A blade of grass is a commonplace on Earth; it would be a miracle on Mars. Our descendants on Mars will know the value of a patch of green. And if a blade of grass is priceless, what is the value of a human being? "
― Carl Sagan , Pale Blue Dot: A Vision of the Human Future in Space
4 " During our brief stay on planet Earth, we owe ourselves and our descendants the opportunity to explore - in part because it's fun to do. But there's a far nobler reason. The day our knowledge of the cosmos ceases to expand, we risk regressing to the childish view that the universe figuratively and literally revolves around us. In that bleak world, arms-bearing, resource-hungry people and nations would be prone to act on their 'low contracted prejudices.' And that would be the last gasp of human enlightenment - until the rise of a visionary new culture that could once again embrace, rather than fear, the cosmic perspective. "
― Neil deGrasse Tyson , Astrophysics for People in a Hurry
5 " I don't think humanity just replays history, but we are the same people our ancestors were, and our descendants are going to face a lot of the same situations we do. It's instructive to imagine how they would react, with different technologies on different worlds. That's why I write science fiction -- even though the term 'science fiction' excites disdain in certain persons. "
― Kage Baker
6 " I predict we will abolish suffering throughout the living world. Our descendants will be animated by gradients of genetically pre-programmed well-being that are orders of magnitude richer than today's peak experiences. "
― David Pearce , The Hedonistic Imperative
7 " Imagine a world in which generations of human beings come to believe that certain films were made by God or that specific software was coded by him. Imagine a future in which millions of our descendants murder each other over rival interpretations of Star Wars or Windows 98. Could anything—anything—be more ridiculous? And yet, this would be no more ridiculous than the world we are living in. "
― Sam Harris , The End of Faith: Religion, Terror, and the Future of Reason
8 " Of all the questions which can come before this nation, short of the actual preservation of its existence in a great war, there is none which compares in importance with the great central task of leaving this land even a better land for our descendants than it is for us. "
― Theodore Roosevelt
9 " We will know which stars to visit. Our descendants will then skim the light years, the children of Thales and Aristarchus, Leonardo and Einstein. "
― Carl Sagan , Cosmos
10 " What now matters most is how we respond to various risks to the survival of humanity. We are creating some of these risks, and discovering how we could respond to these and other risks. If we reduce these risks, and humanity survives the next few centuries, our descendants or successors could end these risks by spreading through this galaxy.Life can be wonderful as well as terrible, and we shall increasingly have the power to make life good. Since human history may be only just beginning, we can expect that future humans, or supra-humans, may achieve some great goods that we cannot now even imagine. In Nietzsche’s words, there has never been such a new dawn and clear horizon, and such an open sea.If we are the only rational beings in the Universe, as some recent evidence suggests, it matters even more whether we shall have descendants or successors during the billions of years in which that would be possible. Some of our successors might live lives and create worlds that, though failing to justify past suffering, would give us all, including some of those who have suffered, reasons to be glad that the Universe exists. "
― Derek Parfit , On What Matters: Volume 3
11 " For most of human history people owned other people. Then, only a hundred and fifty years ago, our ancestors figured out that was a bad idea. One day we’ll figure out, or our descendants will figure out, that people owning land they don’t live on or work is a bad idea too. "
― Dennis Vickers , Mikawadizi Storms
12 " We should not forget that it will be just as important to our descendants to be prosperous in their time as it is to us to be prosperous in our time. "
― Edmund Morris , Theodore Rex
13 " If the day comes when our descendants can venture with wonder into chestnut forests, we will have gained back more than a perfect tree. We will have gained a new reason for hope. "
― Susan Freinkel
14 " Diaspora starts about a thousand years from now. Most of human civilisation has moved inside computers; essentially, a major branch of our descendants consists of conscious software. "
