Indeed - for example, you can make things look simple by leaving necessary parts out. I think, however, that the more important part of this quote are the word

Indeed - for example, you can make things look simple by leaving necessary parts out. I think, however, that the more important part of this quote are the words 'problem' and 'solution'. Until you have an understanding of the problem that is correct, it is unlikely that you will come to a solution at all. Avoiding the introduction of gratuitous complexity is not necessary to reaching that understanding, but it sure helps.