Solution :
Philosophy is idealism
The idealism is considered as a philosophical approach where the main belief is that 'ideas' are the only true realities and it is the only thing that is worth knowing.
Philosophy in cynicism
In cynicism philosophy, it is belief that the purpose of the life is to live in the virtue and in agreement with the nature. They are practiced by the cynics.
Philosophy in stoicism
Stoicism is a philosophy that hails from Rome and Greece. It beliefs in life that provides maximum positive emotions of the people, and it reduces negative emotions. they also believes that it helps people to hone their virtues of the characters.