"Andrzej Szczeklik was a fascinating personality in many respects. The scope of his general knowledge was absolutely rare. He saw what others did not notice. It's enough to say he was a better doctor than a good doctor. He could look and listen to what the patient says. Looking, he already knew what was wrong, after little things, after grimaces, after the way of breathing, after the way someone sits down or gets up..."

“In science, wherever politics got involved, the results were deplorable.”

“At a time when cancer was a rare disease, people lived shorter for other reasons. When there were no antibiotics, they often died for ordinary infections. I therefore think that the "cancer epidemic" does not result from changes in genetic predisposition or carcinogenic factors, but from the fact that in recent decades these imperfections of human nature have been revealed that were previously masked by other diseases.”

“The more times your cells divide, the greater the chance of mutations that lead to cancer. That is why the average oncological patient is a mature person or even a senior.”

“In lectures, it is important that you lecture simply. We are interested in the smartest students, and we really should take care of those who have most difficulties to understand certain concepts. I try to balance it.”

“I had very happy high school years; I was not a very diligent student, but I had good achievements – I was a winner of biology and chemistry national competition, which gave me a lot of points when I decided to take the entrance examination for medicine, not being completely convinced of the medical profession, since there was never a doctor in my family.”

“We can not predict who will develop the cancer. Cancer is a just disease – it affects everyone, regardless of whether we are poor or rich, where we live, how we live.”