Easy to use

Things that are easy to use survive, regardless of what is fashionable.

The fundamental problem is that many products are created to be sold, not used. 

 —Sori Yanagi

Sori Yanagi (1915-2011) created functional industrial items with a Modernist sensibility.

It's easy to be swayed by frivolity, but you feel something shift inside when you come across perfection in design. 

Available here.