What is the contribution of Rudolf Virchow to cell theory?

Rudolf Virchow's significant contribution to cell theory is encapsulated in the concept that all cells come from preexisting cells. His assertion, "Omnis cellula e cellula," means that cells originate from other cells through the process of cell division. This idea was crucial in shaping our understanding of biological processes, as it emphasizes the continuity of life through cellular reproduction. By establishing that cells do not spontaneously generate but instead arise from the division of existing cells, Virchow underscored the importance of cellular growth and reproduction in living organisms. This principle not only reinforced the foundational concepts of cell theory but also highlighted the interconnectedness of living systems through cellular lineage.