My father taught me that in scientific work even the most brilliant intelligence won't be useful if it won't be supported by a long, hard work.
Adam Vetulani. 1901–1976. Kraków: Polish Acadcemy of Learning, 2005, page 77.
Sexual intercourse consumes time, requires much effort, absorbs a huge part of energy. But it gives such dose of pleasure, that all of these defects don't matter.
Mózg, seks i nagrody, „Charaktery” 2008, nr 1(5), pages 41–43.
The worst thing happens when ideologists are trying to analyse scientific researches.
Neurobiologia inteligencji, „Wiedza i Życie” 2008, nr 2, pages 14–19.
Religion as such is advantageous for human kind. People became religious in the progress of evolution. Although it is believed that it is religion that teaches us what's right and what's wrong, I think religion evolved to substantiate our morality. Brain likes to validate our beheviors.
Olga Woźniak: Stań się dobrym. To się opłaca (interview), „Gazeta Wyborcza”, December 24, 2011.