EN
The author analyses the notion of lying, and defines a lie as a statement in disagreement with the speaker’s knowledge, spoken with the intent to be understood as the truth. The author considers various ways of lying and discusses lying in business, as well as a justification of its negative ethical evaluation due to a) self-seeking intent, and b) practical economic dysfunctionality. The evaluation is graduated with egoistic, aggressive, active, materialistic and hedonistic lies being morally the worst.