# Quote — Robert A. Heinlein, The Door into Summer

> I had taken a partner once before—but, damnation, 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.

- Author: [Robert A. Heinlein](https://www.leafyquotes.com/robert-a-heinlein.md)
- Book: [The Door into Summer](https://www.leafyquotes.com/robert-a-heinlein/the-door-into-summer.md)
- Source: [Wikiquote](https://en.wikiquote.org/wiki/Robert_A._Heinlein#The_Door_Into_Summer_(1957)) ([CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/))
- Quote page: https://www.leafyquotes.com/robert-a-heinlein/the-door-into-summer/i-had-taken

## More from this book

> “Er, will your grandmother tell that fib for you?”
>
> “I guess so. Yes, I'm sure she will. She says people have to tell little white fibs or else people couldn’t stand each other. But she says fibs were meant to be used, not abused.”
>
> “She sounds like a sensible person.”

[Quote page](https://www.leafyquotes.com/robert-a-heinlein/the-door-into-summer/er-will-your.md)

> My old man claimed that the more complicated the law the more opportunity for scoundrels.

[Quote page](https://www.leafyquotes.com/robert-a-heinlein/the-door-into-summer/my-old-man.md)

> Cats have no sense of humor, they have terribly inflated egos, and they are very touchy.

[Quote page](https://www.leafyquotes.com/robert-a-heinlein/the-door-into-summer/cats-have-no-sense.md)