Ludwig Wittgenstein (1889 - 1951) was an Austrian-born philosopher who spent most of his career at Cambridge University. He is known for his contributions to the philosophies of logic, language, mathematics, culture and the mind. Although his initial university studies were in engineering, his studies in philosophy began after meeting Bertrand Russell and reading the works of Gottlob Frege. Throughout his career, Wittgenstein sought to explain how language acquires its meaning. In his earlier work, Wittgenstein sought to extract a precise, technical philosophy of language and logic; whereas, his later philosophy provides a much more socio-cultural explanation of the often untameable landscape of language in use.

The iPhone app provides a collection of quotes from Wittgenstein. The quotes predominantly focus upon language, knowledge and thought and are taken from four major books: Tractatus Logico-Philosophicus, Philosophical Investigations, On Certainty and Culture & Value.