Definition: It's a term in Greek philosophy referring to two fundamentally contrasting but related concepts: old age (such as physical or mental decline) and new life, growth, and potential. The word "new" denotes a state of being, while "old" refers to a past phase characterized by decay. It signifies the transformation that occurs through both life's ups and downs, with some periods marked by growth and change. This phrase is often used in discussions about human development and transition between two states.