やる価値のあることをやり遂げるために必要不可欠な三大要素とは、第一に勤勉、第二に粘り強さ、第三に常識だ。 - トーマス・エジソン［エディソン］ (1847 - 1931)
(Mark MathosianによるPixabayからの画像)
(Google Translateのエンジンを使用した、Sound of Textによるテキスト読み上げ)
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The three great essentials to achieve anything worthwhile are, first, hard work; second, stick-to-itiveness; third, common sense. - Thomas Alva Edison (1847 - 1931)
![IMAGE: The usefulness of (the) useless. [Everyone knows the usefulness of useful things, but no one knows the usefulness of useless things. / Everyone knows the use of the useful, but not the use of the useless.] (Even if something did not bring immediate benefit, it could still turn out to be valuable.)](https://www.ok312.net/wp-content/uploads/2026/01/place-name-sign-822236_640-100x71.jpg)
![IMAGE: I think, therefore I exist. [I think, therefore I am]. / [(La.) Cogito, ergo sum.] [(Fr.) Je pense, donc je suis.]](https://www.ok312.net/wp-content/uploads/2015/05/sunset-485016_640-100x68.png)
