Open in AppCenter
You can view and install this app from AppCenter on elementary OS, or you can preview the listing here.
According to Dieter Rams, good design is innovative, makes a product useful, is aesthetic, makes a product understandable, is unobtrusive, is honest, is long-lasting, is thorough down to the last detail, is environmentally-friendly, and is as little design as possible.
Get a simple reminder of one of these principles each time you open the app.
Set to automatically start in System Settings → Applications → Startup