这一插曲突出了他一再扮演的角色，即现有发明的改进者和推广者。
The episode underscored his recurring role as a refiner and popularizer of existing inventions.
当明智的选民(如果我可以这样称呼他们的话)增加时，改进者的数量也就增加了。
The number of improvers will increase, as the intellectual constituency, if I may so call it, increases.
请科学家们不要见笑，我以为世界之所以还大有待于改进者，全因为有这些奴才的缘故。
May scientists please not laugh at me. The reason I believed there was still room for improvement on the world was that there were despicable flunkeys in it.
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