If you’re anything like us, you’ve probably read Project Hail Mary by now and watched the movie at least once.

But if you still can’t get enough of Ryland and Rocky, we don’t blame you. With the perfect mix of science, awe, and humour, Andy Weir’s story is powerful and leaves you thinking long after you turn the last page.

To relive some of the book’s best moments, scroll on for fifteen quotes that perfectly capture the book’s characters and major themes*.

*Note: Rocky had plenty of amazing lines, which sadly didn’t make this list, as his quotes don’t always make sense in isolation. 

WARNING: SPOILERS AHEAD

15 of the best Project Hail Mary quotes

1. When stupid ideas work, they become genius ideas.
2. What’s the point of even having a world if you’re not going to pass it on to the next generation?
3. Human beings have a remarkable ability to accept the abnormal and make it normal.
4. I’m smart enough now to know I’m stupid. That’s progress.
5. When you’re stupid tired, accept that you’re stupid tired. Don’t try to solve things right then.
6. Evolution can be insanely effective when you leave it alone for a few billion years.
7. Sometimes, the stuff we all hate ends up being the only way to do things.
8. It’s a weird feeling, scientific breakthroughs. There’s no Eureka moment. Just a slow, steady progression toward a goal. But man, when you get to that goal it feels good.
9. Human brains are amazing things. We can get used to just about anything.
10. The hardest part about working with aliens and saving humanity from extinction is constantly having to come up with names for stuff.
11. It’s the kids of today that’ll have to make the world of tomorrow work.
12. Intelligence evolves to give us an advantage over the other animals on our planet. But evolution is lazy. Once a problem is solved, the trait stops evolving.
13. Got to love computers. They do all the thinking for you so you don’t have to.
14. Broadly speaking, the human brain is a collection of software hacks compiled into a single, somehow-functional unit. Each “feature” was added as a random mutation that solved some specific problem to increase our odds of survival. In short, the human brain is a mess.
15. AMAZE AMAZE AMAZE