文字——保存我们思想，为后代造福的艺术，缺少了它人类的任何进步都是没有可能的，但它的发明也只不过是在短暂的四千年之前。
Writing—the art of preserving our ideas for the benefit of future generations, without which no progress is possible was invented only four thousand years ago.
他们为造福于后代而勤奋地劳动。
They Labour assiduously for the benefit of future generations.
让我们共同努力，为子孙后代保留这片净土，确保广袤无垠的外层空间永远造福于全人类。
Let's make concerted efforts in preserving the vastness of outer space a tranquil place for the benefit of our future generations.
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