<p>The article titled “Is it human mind attuned with general ecological principles?” discusses a relevant topic in the field of environmental psychology as it aims to relate human attitudes with ecological principles. In this sense, it tests empirically some hypotheses from the literature review.</p><p>Regarding the abstract, I suggest a review of it, in order to include information about the method of study and the main results. A first reading of it, leads us to conclude that it is a literature review study and not an empirical study as indeed it is.</p><p> About the method, participants need to be better described because there are no data on how many of them represent each area (areas representing the low, middle and high socio-economic strata of the city), as well as how they were accessed. For instruments, I suggest including information on the psychometric properties of them, as they serve as a parameter to evaluate the results found in this study.</p><p>The results show that the hypothesis (HEAP implies knowledge, appreciation for, and the practice of ecological rules) can be partially supported. The study limitations have been described adequately.</p><p>The statement “In the case of association, respondents evaluated slightly more positively the cooperation component of association (mean = 3.57) than the competition one (mean = 3.21), probably because they are part of a collectivistic society which privileges (at least in theory) the interest of community and teamwork”, can not be affirmed because there are insufficient data about participants.</p><p>The final paragraph, “Why HAEP exists?” does not appear as integrated into the logical structure of the article.</p><p>Although the literature cited is relevant, the article needs newer references (last five years) for the research theme.</p><p>The results show the importance of schooling in relation to affinity with ecological principles, as with other principles and attitudes investigated in the study. Thus, education by itself would be an important component in promoting pro-environmental attitudes. </p>