Philosophy is the area of thought which asks the largest and the ultimate of all questions in a search for first principles. As Plato would say "A philosopher is one who desires to discern the truth". It aims for an adequate interpretation of man and his place in reality.
For Haz, the beginning of philosophy consists in the moment when one has realized that he or she has unexamined prejudices of the mind, that the unexamined idols of the mind must be broken with examination. The point is that there are so many things which are set in stone that are taken for granted which do not have to be. The "unexamined prejudices" applies to dogmatic religious beliefs too. [1]