The most difficult among us are the most rewarding. It goes for friendships, employees, students, children, and probably every romance.
Diamonds come in the rough and only those with insight recognize them. Anyone can appreciate a diamond once it has been cut to shape, but those who treasure diamonds in the rough stand to earn the greatest reward.
Diamonds are difficult. Not only are they hard and rare, rather than being scratched they often do the scratching. While everyone likes to adorn a diamond, only the most patient, strong, and skilled hands can help them ascend to their full potential.