Being and Time important, i.e., "Dasein". Heidegger wrote that "Being and Time" was made possible by his study of Edmund Husserl's "Logical Investigations" (1900–1901), and it is dedicated to Husserl "in friendship and admiration". Although Heidegger did not complete the project outlined in the introduction, "Being and Time" remains his most important work. It was immediately recognized as an original and groundbreaking philosophical work, and later became a focus of debates and controversy, and a profound influence on 20th-century philosophy, particularly existentialism, hermeneutics, deconstruction, and the enactivist approach to cognition. "Being and Time" has been described as the most influential version of existential
Apollonius of Tyre (philosopher) chronological work () of which Stephanus of Byzantium quotes the fourth book, is uncertain. Apollonius of Tyre (philosopher) Apollonius of Tyre (; fl. 50 BC), was a Stoic philosopher. Strabo describes him as living "a little before my time," and says he wrote "a tabulated account of the philosophers of the school of Zeno and of their books," and which appears to have been a short survey of the philosophers and their writings from the time of Zeno. He is mentioned by Diogenes Laërtius as the author of a work on Zeno. Whether this Apollonius is the same as the