This text examines the nature of philosophical thinking and its distinctness from scientific methodologies. It argues that philosophy lacks universally binding starting points or fixed procedures. Instead, the primary requirement for philosophical inquiry is rigorous systemic thinking, which ensures logical continuity and prevents the formation of disparate islands of meaning. This systematic approach is inextricably linked to the demand for criticality, manifesting as self-reflection and an openness to dialogue with diverse perspectives. A central theme is the Masaryk-inspired penetration to principles. The objective of seeking these principles is not to establish universal validity or dogmatic certainty, but rather to uncover and analyze unstated or unconscious assumptions. By bringing these hidden foundations to light, philosophy subjects them to critical evaluation and assessment. Ultimately, philosophy is defined as a demanding intellectual endeavor that seeks the roots of thought through systematic analysis, critical discourse, and the constant re-examination of both personal and external philosophical premises to maintain logical coherence.