I used to like maths and love life but every once in a while I noticed that I cannot possibly be in love with them all the time.
You learn how to deal with familiar challenges and how to react when you encounter completely new ones. There are rules when it comes to both life and mathematics, but I can still make silly mistakes when being either overconfident or ignorant.
There are moments when nothing makes sense and you try your best to sort it out and you simply can't get it right. Sometimes all you need to do is to take a step back and you will suddenly become aware of the solution to your problem. It's not easy to see the big picture, and some people are better than others when it comes to that.
Still, life is not always like mathematics, the thrills and the painful moments don't cancel each other, they are not just positive and negative, but they add up and they become memories. And that's why it's slightly harder.