John Jacob Astor's father wished his son to be his successor as a butcher, but the instinct of commercial enterprise was too strong in the future merchant.
Nature never duplicates men.

She breaks the pattern at every birth.
The magic combination is never used but once.

Frederick the Great was terribly abused because he had a passion for art and music and did not care for military drill.

His father hated the fine arts and imprisoned him.

He even contemplated killing his son, but his own death placed Frederick on the throne at the age of twenty-eight.