Smooth, buttery and precious, Gifted to adorn, Or adorning a gift. You sleep soundly in my arms

Physicians scatter at my dawn approach, though I've never held a degree. While my bite doomed paradise and a princess. Discord's golden trophy shares my name. What am I?

Of all the inventions that have been made over the years, I am generally considered to be the most remarkable. What am I?

I hold your thoughts in chalky white, erase me gently, and I’m blank as night. A thousand lessons may pass through, yet each swipe lets me start anew.

I can sometimes be cracked, and you can usually find me in a trail. If I describe your mind, your thoughts are probably off the rail.