Can we use nop commerce to learn and use in other projects

Dear Andrei,

Your product nopCommerce is Good one,  it has helped me to learn new things in asp mvc.

I have some questions:

Can we use some code (copy & Paste) from nopCommerce to some other asp MVC projects.

Appreciate your team hard work, so Please advice, can we use ? or how should we use ?, what are the do's and don't s ?

Thank you.