„By exploring other worlds we safeguard this one. By itself, I think this fact more than justifies the money our species has spent in sending ships to other worlds. It is our fate to live during one of the most perilous and, at the same time, one of the most hopeful chapters in human history.Our science and our technology have posed us a profound question. Will we learn to use these tools with wisdom and foresight before it’s too late?“

— Carl Sagan

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„But let us not put our sights too high. We do not have to be saviours of the world! We are simply human beings, enfolded in weakness and in hope, called together to change our world one heart at a time. (163)“
— Jean Vanier
„No society has ever yet been able to handle the temptations of technology to mastery, to waste, to exuberance, to exploration and exploitation. We have to learn to cherish this earth and cherish it as something that's fragile, that's only one, it's all we have. We have to use our scientific knowledge to correct the dangers that have come from science and technology.“
— Margaret Mead
„We cannot live in a world that is interpreted for us by others. An interpreted world is not a hope. Part of the terror is to take back our own listening. To use our own voice. To see our own light.“
— Hildegard of Bingen
„In most of our human relationships, we spend much of our time reassuring one another that our costumes of identity are on straight.“
— Ram Dass
„As human beings living in this monstrously ugly world, let us ask ourselves, can this society, based on competition, brutality and fear, come to an end? Not as an intellectual conception, not as a hope, but as an actual fact, so that the mind is made fresh, new and innocent and can bring about a different world altogether? It can only happen, I think, if each one of us recognises the central fact that we, as individuals, as human beings, in whatever part of the world we happen to live or whatever culture we happen to belong to, are totally responsible for the whole state of the world.We are each one of us responsible for every war because of the aggressiveness of our own lives, because of our nationalism, our selfishness, our gods, our prejudices, our ideals, all of which divide us.“
— Jiddu Krishnamurti