# Quote — Donella H. Meadows, Thinking in Systems

> Economic theory as derived from Adam Smith assumes first that homo economicus acts with perfect optimality on complete information, and second that when many of the species homo economicus do that, their actions add up to the best possible outcome for everybody. Neither of these assumptions stands up long against the evidence.

- Author: [Donella H. Meadows](https://www.leafyquotes.com/donella-h-meadows.md)
- Book: [Thinking in Systems](https://www.leafyquotes.com/donella-h-meadows/thinking-in-systems.md)
- Page: 107
- Source: [Wikiquote](https://en.wikiquote.org/wiki/Donella_Meadows#Thinking_in_Systems:_A_Primer_(2008)) ([CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/))
- Quote page: https://www.leafyquotes.com/donella-h-meadows/thinking-in-systems/economic-theory-as-derived

## More from this book

> How is it that one way of seeing the world becomes so widely shared that institutions, technologies, production systems, buildings, cities, become shaped around that way of seeing?

p. 169 — [Quote page](https://www.leafyquotes.com/donella-h-meadows/thinking-in-systems/how-is-it-that.md)

> There always will be limits to growth.

[Quote page](https://www.leafyquotes.com/donella-h-meadows/thinking-in-systems/there-always-will-be.md)

> The bounded rationality of each actor in a system may not lead to decisions that further the welfare of the system as a whole.

[Quote page](https://www.leafyquotes.com/donella-h-meadows/thinking-in-systems/the-bounded-rationality.md)