
Ethics — Part 3
- Reading level
- Plain English
- Price
- Free
About the book
"Ethics — Part 3" by Benedictus de Spinoza is the third part of a philosophical treatise written between 1661 and 1675. This section explores the origin and nature of human emotions, arguing that all beings strive to preserve their power and perfection. Spinoza examines how desire underlies our emotional lives, analyzing joy and sadness as fundamental building blocks. He connects virtue to power and investigates when the mind acts with adequate ideas versus when it remains passive with inadequate understanding.
- Ethics
Updated September 2026. Public domain in the USA. Text and summary from Project Gutenberg eBook #948. Ethics — Part 3 on Wikipedia.





![Cover of A Theological-Political Treatise [Part IV]](https://www.gutenberg.org/cache/epub/992/pg992.cover.medium.jpg)


![Cover of A Theological-Political Treatise [Part III]](https://www.gutenberg.org/cache/epub/991/pg991.cover.medium.jpg)

