what was david hume's philosophy / world view

David Hume (1711–1776) was a central figure of the Scottish Enlightenment. His philosophy is defined by empiricism and skepticism—the idea that our knowledge of the world is based entirely on sensory experience rather than innate ideas or pure reason.

Here is a breakdown of his core worldview:

1. Empiricism (The Origin of Knowledge)

Hume argued that all human knowledge comes from "perceptions," which he divided into two categories:

• Impressions: Lively, vivid sensations (what you feel when you touch a hot stove or see a color).
• Ideas: The faint, faded images we create in our minds when we reflect on those impressions (memories or thoughts). He concluded that if you cannot trace an idea back to a sensory impression, it is likely meaningless.

2. The Problem of Induction

This is perhaps Hume’s most famous challenge. He questioned why we believe that the future will resemble the past (e.g., the sun will rise tomorrow because it has before). He argued that we have no logical or rational proof for this; we only have "habit." We assume the future will repeat the past simply because we are biologically hardwired to expect patterns, not because we can prove it through reason.

3. Skepticism Regarding the "Self" and Causality

Hume pushed his empiricism to radical conclusions:

• The Self: He argued that there is no permanent "self" or "soul." If you look inside yourself, you find a constant flow of changing thoughts, feelings, and memories, but never a single, stable "I." He viewed the self as a "bundle of perceptions."
• Causality: He argued that we never actually perceive "cause and effect." We see one event followed by another (like a billiard ball hitting another), but we don't perceive the force connecting them. We merely develop a custom of expecting the second event whenever we see the first.

4. Morality and "Is-Ought"

Hume famously argued that you cannot derive an "ought" from an "is." Just because something is the case (a scientific fact), it doesn't automatically mean we ought to do something about it. Furthermore, he believed morality was based on sentiment (emotion) rather than reason. He famously wrote: "Reason is, and ought only to be the slave of the passions." He believed we judge actions as moral or immoral based on feelings of sympathy and utility, not by calculating logic.

5. Religion

Hume was a profound skeptic of traditional religion. In his Dialogues Concerning Natural Religion, he challenged the "argument from design" (the idea that the complexity of the universe proves a designer). He pointed out that there is no empirical evidence for a benevolent creator, and that the existence of suffering and evil in the world is inconsistent with the idea of an all-powerful, all-good god.

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In short: Hume viewed the world as a place where we lack absolute certainty about almost everything. He believed we are not primarily rational creatures, but rather creatures of habit, emotion, and instinct who navigate the world through practical convenience rather than logical truth.