One of this man's works maintains that the opposite of pure being is pure nothing and introduces the concepts of "Being-For-Self" and "Being-For-One" 
One of this man's works maintains that the opposite of pure being is pure nothing and introduces the concepts of "Being-For-Self" and "Being-For-One" to explore the idea of infinity, while another ends with a section about Absolute Knowledge. That work also includes a famous passage in which two self- conscious beings engage in a (*) "struggle to the death" to dominate the other, a key element in this man's philosophy called the Master-Slave dialectic. For ten points, name this author of Science of Logic, who discussed the levels of consciousness in The Phenomenology of Spirit.
One of this man's works maintains that the opposite of pure being is pure nothing and introduces the concepts of "Being-For-Self" and "Being-For-One" to explore the idea of infinity, while another ends with a section about Absolute Knowledge.
Georg Wilhelm Friedrich {Hegel}