Treatise of Human Nature

Name: Treatise of Human Nature
Author: David Hume

Treatise of Human Nature is a philosophy work written by David Hume and first published in 1739-1740.

This is a foundational work of Western philosophy, aiming to establish a science of human nature based on empirical observation.

Divided into three books:

Of Understanding
Of Passions
and Of Morals

The treatise explores how humans acquire knowledge, experience emotions, and develop moral judgements.

Hume argues that all ideas arise from impressions (sensory experiences), questions the notion of a permanent self, and claims that reason is subordinate to passion in motivating human behaviour. Although initially unnoticed, the treatise was later recognised for its profound influence on philosophy, particularly epistemology and ethics.

"Since it appears, that our simple impressions are prior to their correspondent ideas, and that the exceptions are very rare, method seems to require we should examine our impressions, before we consider our ideas. Impressions may be divided into two kinds, those of Sensation and those of Reflexion. The first kind arises in the soul originally, from unknown causes. The second is derived in a great measure from our ideas, and that in the following order. An impression first strikes upon the senses, and makes us perceive heat or cold, thirst or hunger, pleasure or pain of some kind or other. "

Why Read Treatise of Human Nature in 2026?

Hume builds a natural science of mind from impressions, habit, and feeling. Cause becomes expectation; the self turns into a bundle; reason serves the passions. Demanding yet modern, it shows how psychology, ethics, and knowledge can be reconstructed from ordinary experience rather than metaphysics. Read to sharpen judgment at its roots.

Today's connection

Behavioral economics, AI inference, and evidence standards hinge on Humean questions. This work upgrades skepticism, clarifies belief formation, and explains why emotion powers action.