![rw-book-cover](https://images-na.ssl-images-amazon.com/images/I/51lRqjp71zL._SL200_.jpg) ## Metadata - Author: [[Robert A. Heinlein]] - Full Title: The Door Into Summer - Category: #books ## Highlights - JOHN AND JENNY SUTTON were the sort of sophisticated, unshockable, friendly people who could invite an earthquake in for tea. ([Location 2664](https://readwise.io/to_kindle?action=open&asin=B0051QNLWW&location=2664)) - I suppose that if I had been a real, honest, legitimate time traveler, engaged in scientific research, I would have sought publicity, brought along indisputable proof, and invited tests by scientists. But I wasn’t; I was a private and somewhat shady citizen, engaged in hanky-panky I didn’t want to call attention to. I was simply looking for my Door into Summer, as quietly as possible. ([Location 2695](https://readwise.io/to_kindle?action=open&asin=B0051QNLWW&location=2695)) - no matter how many times you get your fingers burned, you have to trust people. Otherwise you are a hermit in a cave, sleeping with one eye open. There wasn’t any way to be safe; just being alive was deadly dangerous...fatal, in the end. ([Location 2910](https://readwise.io/to_kindle?action=open&asin=B0051QNLWW&location=2910)) - I had a horrid thought then: What would happen if I sneaked in and cut the throat of my own helpless body? But I suppressed it; I wasn’t that curious and suicide is such a final experiment, even if the circumstances are mathematically intriguing. ([Location 3010](https://readwise.io/to_kindle?action=open&asin=B0051QNLWW&location=3010))