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If we conceive all the changes in the physical world as reducible to the motion of atoms, motions generated by means of the fixed nuclear forces of those atoms, the whole of the world could thus be known by means of the natural sciences.
如果我们把物理世界的所有变化都归结为原子的运动，即由原子的固定核力所产生的运动，那么整个世界就可以由自然科学所知。