In those remote days I studied at the biological faculty of the Kyiv National University and used to see Platon Grygorovych in both the chair and the institute. He produced an impression of an arrogant, self-satisfi ed person due to his confi dent imposing walk. Later, when I was a fourth-year student and future physiologist, he conducted practical classes for our group, and I was very surprised to notice that in reality there was no arrogance in his behavior, and my former notion of him seemed to be impossible. His attitude to us became at once friendly and informal. We heard that he was working hard on his Doctoral, dedicated to the processes of excitement and inhibition in two neuron refl ector arcs of the spinal cord. I regret that our group did not use to attend his lectures which were highly appreciated by the following graduations. But even in short introductory part of lecture he, as a teacher, demonstrated broad and profound knowledge, ability to explain simply and understandably those complicated tasks we were faced with. Platon Grygorovych was a brilliant lector. My under-graduation and graduation works were in physiology of digestion.