Why calculus is the language of God?
“It’s the language God talks.” For reasons nobody understands, the universe is deeply mathematical. Maybe God made it that way. Or maybe it’s the only way a universe with us in it could be, because nonmathematical universes can’t harbor life intelligent enough to ask the question.
How do you appreciate calculus?
Read books about calculus and its applications.
You should seek out such literature and read it. The more you learn about the topic — beyond just learning how to do it — the more you will appreciate and enjoy it. For example, some books on the subject of calculus include: Zombies & Calculus, by Colin Adams.
What did Einstein say about calculus?
Einstein reportedly found the article humorous and remarked: ““I never failed in mathematics… Before I was fifteen I had mastered differential and integral calculus.” (15 was the age in Germany that most qualified students would start to learn calculus.)