Abstract: The formal logic called the logic of “Quietness” and the dialectical logic called the logic of“Movement” are both antagonistic and unitary. Although there are differences in the research objects, applicable fields and basis of production, the two are closely related and complementary. “Quietness” logic is the premise and foundation of “Movement” logic, and “Movement” logic is the power and purpose of“Quietness” logic. Formal logic as a “Quietness” logic is neither a metaphysical worldview nor a possibility which thoroughly denied by dialectical logic. Young students must correctly understand the importance of the two thinking tools and consciously establish a “Movement” and “Quietness” way of thinking.