Citing from a text in your writing

Here’s one way to integrate a quote into your writing:
One of the hardest things about growing up is figuring out who you are, and what you want to do with your life. While it’s one of the hardest things about growing up, it’s also perhaps the most important, for as Paulo Coelho writes in his novel The Alchemist, realizing “one’s destiny is a person’s only real obligation” (22).
Here’s another way:
One of the hardest things about growing up is figuring out who you are, and what you want to do with your life. While it’s one of the hardest things about growing up, it’s also perhaps the most important, because, “To realize one’s destiny is a person’s only real obligation” (The Alchemist, 22).
How NOT to do it:
One of the hardest things about growing up is figuring out who you are, and what you want to do with your life. While it’s one of the hardest things about growing up, it’s also perhaps the most important. “To realize one’s destiny is a person’s only real obligation” (The Alchemist, 22).