The author dedicates her study to Božidar S. Marković as a sign of respect and admiration, since exceptional are the people who, in spite of great injustice inflicted to them, succeed to preserve themselves from hatred or, at least, great bitterness, and to continue to have their human and professional integrity even in rainy days. As Aristotle said: A just man prefers to remember good things he received from others, than harm suffered; to remember acts of kindness by others rather than those he extended to others. Is 'Topica' acroamatic or esoteric writing of Aristotle? Is it logical or practical (rhetorical and poetical) writing? Is the present position of 'Topica' in the 'Organon' validly established, or should it stay between 'Hermeneutics' and 'Analytics'? Whether 'Topica' was created prior to Aristotle's discovery of syllogism, namely before the 'Analytics'? Whether it was written as a whole, or were some parts subsequently added? What is the relationship between 'Topica' and 'Sophistical refutations'? In what way to systematize, in terms of setting the problems, the 'Organon' and the 'Topica' in it.