Dan couldn't help but laugh at Simba's question. "Yeah, you really don't know a lot do you?" He raised his hands when Nala growled at him. "Hey, not trying to be mean here, just stating a fact." He allowed himself some time to calm down before trying to talk again. "It really does present a problem, you know... how little non-humans know. When we grow up, we have to learn a lot of stuff, most of which is rather useless for what wee do, and all the other times, it's not enough. But on the other hand, you guys, who didn't go through the same schooling, you know even less... What I'm saying is that if I try to explain all your questions one by one, it will take forever and we will get nowhere. There needs to be a better way than this..."
He thought about how he should proceed. For a while, he just say there, thinking, and then he got an idea. "Right, Simba, Nala, your first lesson starts now." He quickly brought up the alphabet on the computer and showed it to them. "These symbols here, the two of you will need to learn how to see, interpret, and understand their meaning all by yourselves. It's called reading. The best way to think of it is that it's nothing more than a visual representation of the normal language that you or I speak out loud." With that, he began to try and teach them how to read.
As they flew, Nala rubbed her head in annoyance. This reading stuff was really beginning to hurt her head, and she felt like she got absolutely nowhere. "Why do we need to learn this stuff, anyways?" she asked. "Why can't you tell us what we need to know?"
Dan didn't bat an eye at her. Both Simba and Nala were having a hard time grasping the concept, and it was something that even most humans ask at least once. "Because sometimes I won't be around to explain things for you," he said, "or I might not know. But mostly, it's because you will come across writing all the time, and you will need to know what it says. It's the only way to get some things done." Dan motioned around the plane. "Look around. Tell me how much writing you see."