Stuck in reverse?

There's no point pulling anyone down, because the only thing that would happen is that they will find a way to get back up and soar higher. No one will stay on the ground forever. 

Just like an arrow can only be pulled backward, people are gonna be stronger and venture into something GREATER. 

Likewise for making someone sad. Once the person had a taste of sadness, happiness comes twofold better. The person would've learnt to appreciate happiness because sadness wasn't easy to endure, but during the downfall, the lesson learnt was priceless. 

There's really no point, so give it up.