What books can I read to clear my mind and face life indifferently?

Reading books on philosophy, psychology, religion, and so on could help people cultivate inner peace and self-awareness, so as to achieve the effect of being pure and indifferent to life. For example, classic works such as Tao Te Ching and The Analects of Confucius could inspire people to think and guide them to understand their inner world. Through the study of these books, people could more clearly recognize the impermanence of life and the selfless nature of all things, so that they could be more indifferent to all the gains and losses and disturbances in life.