The Definition of Insanity.

Albert Einstein once said, "The definition of insanity is doing the same thing over and over again and expecting different results." When you've been doing something for quite a while, such as trying to figure out a math problem, but you're not making any progress, you may have fallen into this trap. The most important thing you can do is to stop what you've been doing and try a different method. Even if the new method doesn't work, it will at least give you a new angle on the problem and may give you a new idea you can use to solve it. Keep changing your approach and eventually, you'll find a method that works. So, remember: if one approach isn't working, take another approach.

「狂気とは同じことを何度も繰り返しながら、違う結果を期待することだ」。アルバート・アインシュタインの言葉です。数学の問題がなかなか解けない時などは、この罠にはまっている可能性があります。何より大切なのは、それまでのやり方をやめて、別の方法を試すこと。新しい方法でうまくいかなくても、視点が変わって問題解決に役立つヒントが見つかるかもしれません。アプローチを変えていけば、いずれ攻略法が見つかるはず。うまくいかないなら、別のアプローチを試すことです。