食色性也shísèxìngyěMeanings1. Appetite and lust are only natural (Mencius 6A:4).2. By nature we desire food and sex.Characters used食to eat色color性nature也alsoExamples1食色性也shísèxìngyě（孔子Kǒngzǐ）。Desire for food and sex is part of human nature.