You can't guarantee things like that! After all, when we had all the books we needed, we still insisted on finding the highest cliff to jump off. But… - Ray Bradbury

The books are to remind us what asses and fools we are.

"They walked still farther and the girl said, "Is it true that long ago firemen put fires out instead of going to start them?"
No. Houses have always been fireproof, take my word for it."
Strange. I heard once that a long time ago houses used to burn by accident and they needed firemen to stop the flames.

...We're allotted a little space on earth and that we survive in that wilderness that can take back what it has given, as easily as blowing its breath on us or sending the sea to tell us we are not so big. When we forget how close the wilderness is in the night, my grandpa said, someday it will come in and get us, for we will have forgotten how terrible and real it can be.

The crowd upon the cross gives anguished roar; A moment terrible to hear.