“Don’t hurt anyone. Never bully people weaker than yourself. Help out those in need. Some would say that these rules are obvious. But the truth is, the obvious is no longer obvious in today’s world. What’s worse is that some people even ask why. They don't understand why they shouldn't hurt other people. It's not a simple thing to explain. It’s not logical. But if they read books they will understand. It’s far more important than using logic to explain something. Human beings don’t live alone, and a book is a way to show them that.”

Rintaro did his best to explain to the invisible listener.

“I think the power of books is that—that they teach us to care about others. It’s a power that gives people courage and also supports them in turn.”

Rintaro broke off for a moment, biting his lip.

“Because you seem to have forgotten,” he resumed with all the strength he could muster, “I’m going to say it as loud as I can. Empathy—that's the power of books.”