[The lecture].

The author reviews the rules of conduct to be followed in lectures and he identifies a number of advices, useful for young colleagues. The fundamental ethical goal of lectures is to serve the audience as well as possible. The author touches upon the most important general rules of oral communications such as punctuality, discipline of remaining within time limitations, but he also describes advices how to work and deliver talks lectures. In conclusion he elaborates on his own view regarding the lecture opportunities that grow in our days, the effectiveness of which, however, leaves much to be desired.