The way we think shapes how we live. Therefore, collecting philosophical ideas is more than just a study for specialists; it shapes our type of civilization. Alfred North Whitehead, the English philosopher, is regarded today as the most significant renovator of metaphysics and philosophy of nature in the 20th century. His last major work, "Modes of Thought," addresses the question of what role philosophy plays in the creative and cultural process we refer to as civilization. Whitehead's book is a passionate plea for the power of speculation as a fundamental mode of philosophical thinking. Alfred North Whitehead (1861-1947) dedicated himself to questions of the philosophy of nature after foundational work in mathematics. Following his emigration to America, Whitehead developed a process metaphysics that was first introduced in "Science and the Modern World.".