David Hume

David Hume (1711-1776). a Scottish philosopher and historian, was the last of the three great British Empiricists. He argued that if all we know is what we learn from experience, then we can know very little-- thus carrying empiricism to a skeptical reductio ad absurdum. The later philosopher Kant remarked that it was Hume's writings that had "roused him from his dogmatic [rationalist] slumbers."

Our ideas reach no farther than our experience. We have no experience of divine attributes and operations-- I need not conclude my syllogism. You can draw the inference yourself.
- David Hume, Dialogues Concerning Natural Religion (1779)