It isn't that a warrior learns shamanism as time goes by; rather, what he learns as time goes by is to save energy. This energy will enable him to handle some of the energy fields which are ordinarily inaccessible to him. Shamanism is a state of awareness, the ability to use energy fields that are not employed in perceiving the everyday-life world that we know.

For a human being, sadness is as powerful as terror. Sadness makes a warrior shed tears of blood.

Only as a warrior can one survive the path of knowledge.

Warriors do not win victories by beating their heads against walls, but by overtaking the walls. Warriors jump over walls; they don't demolish them.

...one should never turn to one's left when facing the nagual.

The only thing that is real is the being in you that is going to die.

And so you're afraid of the emptiness of your friend's life. But there's no emptiness in the life of a man of knowledge, I tell you. Everything is filled to the brim and everything is equal.