The phrase [zaczynaj od dlaczego](javascript:void(0)) translates from Polish to "start with why" in English. It is famously known from the book "Start with Why" by Simon Sinek, which emphasizes the importance of identifying and communicating the core purpose or belief ("why") behind actions, especially in leadership and business. Instead of focusing on what you do or how you do it, Sinek’s approach advocates beginning with why you do it to inspire others and build loyalty. This concept is foundational for effective leadership, marketing, and personal motivation, helping individuals and organizations clarify their deeper mission beyond just products or services.