Why do people need to learn?

Philosophy: The essence is "know yourself," helping you see the true nature of things and the boundaries of critical thinking.
Psychology: The essence is "understanding behavior and the mind," helping you see the underlying motivations of human nature and behavioral logic.
Logic: The essence is "the rules of thinking," helping you see the rationality of judgments and the rigor of reasoning.
Sociology: The essence is "the interaction between people and structures," helping you see the mutual influence of group behavior and social frameworks.
Literature: The essence is "a mirror of human nature," helping you see the folds of the human heart and the myriad states of society.
Economics: The essence is "trade-offs and choices," helping you see the logic of benefit distribution and the underlying principles of exchange.
Physics: The essence is "the language of nature," helping you see the laws of material motion and the fundamental logic of natural phenomena.
Mathematics: The essence is "the logic of the universe," helping you see abstract logical relationships and precise reasoning paths.
History: The essence is "the lessons of time," helping you see the laws of historical development and cyclical patterns.
Political Science: The essence is "the game of power," helping you see the rules of power distribution and strategic interactions among parties.
Law: The essence is "the boundaries of order," helping you see the rules governing social operation and the bottom line of behavior.
Religious Studies: The essence is "the ultimate inquiry," helping you see humanity's quest for life, death, and meaning.
Anthropology: The essence is "a lens of culture," helping you see the origins of different cultures and the logic of group life.
Education: The essence is "the awakening of the soul," helping you see the laws of individual growth and the paths to potential.
Management: The essence is "efficiency and humanity," helping you see the logic of organizational operation and the balance of human nature.
Computer Science: The essence is "the computability of the world," helping you see the decomposition of complex problems and digital solutions.
Engineering: The essence is "turning theory into reality," helping you see the implementation logic of scientific theories and methods of practical innovation.
Medicine: The essence is "counteracting entropy and uncertainty," helping you see the fragility of life and the logic of health preservation.
Architecture: The essence is "solidified philosophy," helping you see the logic of spatial design and the materialization of humanistic spirit.
Art: The essence is "symbolization of emotions," helping you see the expression logic of human feelings and the tangible presentation of the spiritual world.
Ethics: The essence is "the moral yardstick of good and evil," helping you see the standards of moral judgment and the bottom line of human nature.
Geography: The essence is "the interaction between space and humans," helping you see the causes of regional differences and the spatial patterns of human development.
Linguistics: The essence is "the carrier of language and thought," helping you see the expressive logic of words and the humanistic sentiments behind them.
Science and Technology: The essence is "the driving force of innovation and change," helping you see the laws of technological progress and the core drivers of social transformation.