Science changed the world in some unprecedented or unwanted ways, which makes this century a challenge. Even tiny probability of catastrophe caused by technical misadventure would lead to serious results. If we want to enjoy the benefits from science, we have to accept such risks. But we can choose to control science rather than let things drift along, and scientists in different areas should take the responsibility. Without human’s activities, earth’s appearance would have changed very gradually, now as the population rose, the change has accelerated, and many unpredictable things happened. It is time for us to learn humane, global and farseeing from the old Einstein to support civilization to survive.
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