CategoryKnowledge

In Western philosophy, the concept of nature has been interpreted differently by different philosophers. Hobbes saw nature as a state of disorderly competition and emphasized the need for a civilized society, while Rousseau valued the purity of nature, criticizing civilization and calling for a return to nature. Nietzsche saw nature as abundant and vibrant, and argued that humans should realize...

Fatty foods can develop an unpleasant odor and taste due to rancidity during long-term storage. This happens when the unsaturated fatty acids in the fat oxidize, causing a radical reaction. To prevent this, you can add antioxidants, store them at low temperatures, keep them away from air and light, or pack them in nitrogen.   Foods that contain a lot of fat, such as nuts, can develop an...

While the springtime of youth is colorful with love, the springtime of the elderly has a deeper meaning with joy and sadness. Spring belongs to both the young and the old, and through life’s various experiences and emotions, we live a richer life. In the end, spring is something that blooms in our hearts, and we should cherish every moment and live faithfully.   The spring of youth...

Rodin’s The Thinking Man utilizes the rough texture of bronze to break the conventional wisdom that sculpture is a visual art. This aligns with French philosopher Maurice Merleau-Ponty’s philosophy of the body, which suggests that art is moving beyond the visual to stimulate the senses of the entire body, including tactile experiences.   Rodin’s The Thinking Man, by the...

Fair use refers to the free use of copyrighted works with some restrictions on the rights of the copyright holder, and has become increasingly important in the digital environment. However, the fair use of digitized works has become complicated by the ease with which works can be copied and adapted, and comprehensive fair use regulations have been introduced to address this. While sharing...

All animals use osmoregulation to keep the concentration of their body fluids constant. The phenomenon of osmosis regulates the gain and loss of water, and saltwater, freshwater, and terrestrial animals balance their fluids in different ways, depending on their physiology. Saltwater animals drink seawater and excrete salts, while freshwater animals drink little water and excrete a lot of urine...

Neuroscience describes memory formation as the long-term strengthening of synaptic connections. This is when the electrical and chemical signals between nerve cells become stronger and the synaptic connection is maintained for longer. Na⁺ and Ca²⁺ ions play an important role in this process, with early potentiation leading to short-term memories and late potentiation leading to long-term memories...

During the Joseon Dynasty, the king would select talented individuals through a series of examinations that posed current issues and asked for solutions. This was an important process for realizing Confucian ideals, providing opportunities for people from different classes to gain social status and contributing to the integration and development of society.   During the Joseon Dynasty, the...

In everyday life, contracts for the purchase and sale of goods are formed by the sum of an offer and an acceptance, and in special cases, by the realization of intentions or cross offers. Various situations must be considered, such as when the contract is formed, whether the acceptance is notified, and delays, and after the contract is formed, issues of obligation fulfillment and damages may...

This article describes normative ethics and metaethics, which address the nature of moral judgment and truth. Moral realism views moral judgments as objective truths, while emotivism views them as expressions of subjective feelings. The two positions understand the validity of moral judgments differently, and provide explanations for the differences in motivations for ethical behavior and moral...