Can you cut directly on quartz?
Cutting directly on quartz from time to time is unlikely to cause scratches. However, quartz is not completely immune to scratches (as nothing truly is). In addition, quartz could damage your knives (because the surface is so hard), and it also makes a loud noise when impacted by metal. So for the sake of your counters, your knives and your personal comfort, use a cutting board while preparing food.