Errors in intensive care units indicate a breakdown in the system or wrong decision-making. They must be recognized, their causes analyzed and preventive measures taken. We should try to understand the causes of errors, to install an informative reporting system of adverse events as an essential prerequisite, to measure them, and to choose the best approaches for minimizing the harm to the patients. Patient care, safety and quality must continue to be our highest priority. It is to be improved by our collective effort.