# Quote — Robert A. Heinlein, Stranger in a Strange Land

> Love is the condition in which the happiness of another person is essential to your own.

- Author: [Robert A. Heinlein](https://www.leafyquotes.com/robert-a-heinlein.md)
- Book: [Stranger in a Strange Land](https://www.leafyquotes.com/robert-a-heinlein/stranger-in-a-strange-land.md)
- Source: [Wikiquote](https://en.wikiquote.org/wiki/Robert_A._Heinlein#Stranger_in_a_Strange_Land_(1961%3B_1991)) ([CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/))
- Quote page: https://www.leafyquotes.com/robert-a-heinlein/stranger-in-a-strange-land/love-is-the

## More from this book

> "The golden sunshine of Italy congealed into tears. Here's to the alcoholic brotherhood... much more suited to the frail human soul, if any, than any other sort."

[Quote page](https://www.leafyquotes.com/robert-a-heinlein/stranger-in-a-strange-land/the-golden-sunshine.md)

> Kiss girls all you want to — it beats the hell out of card games.

[Quote page](https://www.leafyquotes.com/robert-a-heinlein/stranger-in-a-strange-land/kiss-girls-all.md)

> Share water. Never thirst.

[Quote page](https://www.leafyquotes.com/robert-a-heinlein/stranger-in-a-strange-land/share-water-never.md)