
I’d say both, but in different ways. A derivative is going to tell you about what’s going on at a particular moment, and it’s important to live in the moment. But the whole area under the curve of your life is also important to show you the big picture. The derivative may cloud your mind during rough periods (“I’m going downhill fast!”), but integrating over the course of your life (with the limits being birth and death) can reassure you that this is just a phase.







![My friend 气得我 heart 疼! [My friend gives me nothing but heartache!]](https://library.bc.edu/answerwall/wp-content/uploads/2019/10/20191029_050553_2.jpg)


![To what extent can [you] assign blame to people who fall in the face of adversity?](https://library.bc.edu/answerwall/wp-content/uploads/2019/10/AW10292019-07.jpg)






![爱你! ài nǐ! [Love you!]](https://library.bc.edu/answerwall/wp-content/uploads/2019/10/20191028_051024_2.jpg)
![我 也 爱你 wǒ yě ài nǐ ! [I love you too!]](https://library.bc.edu/answerwall/wp-content/uploads/2019/10/20191028_051032_2.jpg)

