Answer:
I am shared by goats devils and unicorns.
I'm sometimes white and always wrong. I can break a heart and hurt the strong. I can build love and tear it down. I can make a smile, but more often bring a frown. What am I?
Of the king I am blue and of the peasant I am red. Of the frog I am cold and of the dog I am hot instead.
I begin and have no end. Eventually I will be the end of all that has begun.
Born of sorrow, grow with age, you need a lot of me to be a sage. What am I?
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.