Philosophy (from Greek φιλοσοφία, philosophia, literally "love of wisdom") is the study of general and fundamental problems concerning matters such as existence, knowledge, values, reason, mind, and language. The term was probably coined by Pythagoras (c. 570–495 BCE). Philosophical methods include questioning, critical discussion, rational argument, and systematic presentation. Classic philosophical questions include: Is it possible to know anything and to prove it? What is most real? Philosophers also pose more practical and concrete questions such as: Is there a best way to live? Is it better to be just or unjust (if one can get away with it)? Do humans have free will?
Why should not grave Philosophy be styled?
Herself, a dreamer of a kindred stock,
A dreamer, yet more spiritless and dull?
William Wordsworth, The Excursion, Book III. Reported in Hoyt's New Cyclopedia Of Practical Quotations (1922), p. 596-97.