後で考えれば誰でも考えつきそうで、簡単にできそうな 発明や発見も、それ

後で考えれば誰でも考えつきそうで、簡単にできそうな 発
明や発見も、それを最初にやることの難しさをたとえるのに使われます。

結果 (英語) 1:

Otherwise, come up with anyone you think after so easily from
is used to compare the difficulty of discernment and discovery, do it first.

結果 (英語) 2:

Anyone likely Kangaetsuki Given later, issued that could be easily
discovered and Akira are also used to compare the difficulty of things to do it first.

結果 (英語) 3:

I guess everyone later, that would be the easy departure at the Ming and find it difficult to do first is used to compare.