Emotions have evolved so that we can make decisions quickly and withou — Jerzy Vetulani

"A truly Renaissance personality. Absolutely undisputed authority, world-renowned scholar, a real neuroenthusiast who can also spray such a cascade of wit and humor that all anecdotes should hide!"

"The expression of aggression is conditioned both biologically and culturally and it can be learned. On the other hand, proper upbringing can completely eliminate aggressive behavior, but it must be remembered that biological conditions remain present and aggression can easily be restored."

"A characteristic feature of the Professor was the fascination with technical novelties, especially those that could facilitate his scientific and editorial work. When home computers started to appear in the second half of the 1980s, he immediately brought to our Department one of them, and then the next ones. In this way, he initiated, and then, being a deputy director, he took care of the computerization of the Institute."

"Above all, a man of inexhaustible energy, drawing life with full handfuls and a great provocateur. However, in the good sense of the word. As he admitted in an interview with me, which we published as a book, he felt almost all his life a fool who wanted to make people laugh and at the same time stimulate them to think. Anyone who has ever listened to the lecture of Professor Vetulani, knows what Im talking about. Thats why I find it so difficult to accept His death. Unreasonable, because it is a consequence of a tragic accident. I could not be present at his 80th birthday, so I was hoping to celebrate the 85th and then the 90th and subsequent jubilees with his family and lots of friends. I was hoping to see him during these jubilees, bursting with energy and wit, as He did usually. Unfortunately, life has written a different scenario."

"He was an extremely direct man, spontaneous in dealing with other people, he did not care about keeping distance between him as the boss and co-workers. At the very beginning he informed me that he was on first name terms with everyone, proposing the same to me as well. Of course, I willingly (and proudly) accepted this situation."

"My father taught me that in scientific work even the most brilliant intelligence wont be useful if it wont be supported by a long, hard work."