Imagination is a form of seeing

And then what?" said her daemon sleepily. "Build what?" "The Republic of Heaven," said Lyra.

She found out that having something to do prevented you from feeling seasick, and that even a job like scrubbing a deck could be satisfying, if it was done in a seamanlike way. She was very taken with this notion, and later on she folded the blankets on her bunk in a seamanlike way, and put her possessions in the closet in a seamanlike way, and used 'stow' instead of 'tidy' for the process of doing so. After two days at sea, Lyra decided that this was the life for her.

Make this the golden rule, the equivalent of the Hippocratic oath: Everything we ask a child to do should be worth doing.

She had asked: What is he? A friend or an enemy? The alethiometer answered: He is a murderer. When she saw the answer, she relaxed at once. He could find food, and show her how to reach Oxford, and those were powers that were useful, but he might still have been untrustworthy or cowardly. A murderer was a worthy companion. She felt as safe with him as she'd done with Iorek Byrnison the armoured bear.

We have to learn everything we do.

Do you think I could bear to live on after you died? Oh, Lyra, I'd follow you down to the world of the dead without thinking twice about it, just like you followed Roger; and that would be two lives gone for nothing, my life wasted like yours. No, we should spend our whole lifetimes together, good long busy lives, and if we can't spend them together, we... we'll have to spend them apart.