Gagarin搭乘沃斯·托克号的飞行完全自动控制的，让我们有勇气面对未知世界，他给身边的人上了至关重要的一课：人类在太空拥有未来。
Gagarin's flight on the Vostok was entirely automated, yet simply by having the courage to face the unknown, he taught his fellow humans a vital lesson: that they had a future in space.
未来的几年，我们将面对一个变化多端、充满未知数的世界。
The next few years will bring more rapid changes and surprises.
科学也包括面对我们自我“绝对的愚笨”，那种愚笨是一种存在的事实，固有的在我们努力中推动我们去进入未知的世界。
Science involves confronting our 'absolute stupidity'. That kind of stupidity is an existential fact, inherent in our efforts to push our way into the unknown.
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