A product with fewer buttons but clear logic is “better” than a product with 50 buttons that confuse. (Example: The Braun T3 pocket radio vs. a modern smart TV remote).
While all 10 support the ethos, the bolded items are the direct expression of “less.” less but better dieter rams pdf
If you're interested in learning more about Dieter Rams' design philosophy, I can suggest some resources: A product with fewer buttons but clear logic