The context of the following conversation is Lee loved studying animals and insects so he was able to identify every species in the book.:
Lee says I love nature and everything that it has within it. I love learning about animals and insects.
The friend responds That is awesome, I love nature as well but I don't think I can out beat you on that..
Lee responds I know every thing and I can identify everything within this book..
The friend responds Man that is a task I might be able to identify a few things but not everything..
Lee responds Years of practice man..