You have to deeply understand ...

You have to deeply understand the essence of a product in order to be able to get rid of the parts that are not essential.
 Jonathan Ive

Quotes from the same author

The most important thing is that you actually care, that you do something to the very best of your ability
 Jonathan Ive
When something exceeds your ability to understand how it works, it sort of becomes magical.
 Jonathan Ive
I think there is a profound and enduring beauty in simplicity; in clarity, in efficiency. True simplicity is derived from so much more than just the absence of clutter and ornamentation. It's about bringing order to complexity.
 Jonathan Ive
Simplicity is not the absence of clutter.
 Jonathan Ive
The absence of clutter is just a clutter-free product. That's not simple.
 Jonathan Ive