Two hundred and fifty years have passed since David Hume in his famous „Treatise on
human nature” formulated the renowned dictum „no ought from is”. In this article are presented
the most important interpretations of Hume’s thesis, called by one researcher Hume’s guillotine.
The author also indicates that the dispute on the scope and meaning of Hume’s thesis has many
strands (relating to a tissue of many problems) and is argued on various levels.