Philosophy is the study of general and fundamental problems concerning matters such as existence, knowledge, values, reason, mind, and language.
[1][2] It is distinguished from other ways of addressing fundamental questions (such as mysticism, myth) by being critical and generally systematic and by its reliance on rational argument.
The word "philosophy" comes from the Greek philosophia (φιλοσοφία), which literally means "love of wisdom".
Aesthetics is study of the nature of beauty, art, and taste, and the creation of personal kinds of truth.
Epistemology is the branch of philosophy that studies the source, nature and validity of knowledge.