Scientific knowledge endows contemporary human with spiritual power allowing them to control the nature. Scientific results can be used in various domains of life. Philosophy, in turn, might be regarded as knowledge which is rather useless. In spite of that, one may ask the question: what is the meaning of philosophy for human life? The author argues that philosophy understood as inquisitive thinking which penetrates the reality evokes in us metaphysical sensitivity. Philosophy understood as theoretical thinking motivates us to disinterested search for truth. Finally, philosophy taken as critical thinking contemplates the limits of our knowledge and tries to liberate humans from ideology.