莫逆之交：bosom friends总角之交：friendship between people who are friends since childhood一般作宾语，指儿时的朋友。
总角：古代未成年的人把头发扎成髻。
借指童年时期，幼年。
总角是八九岁至十三四岁的少年，古代儿童将头发分作左右两半，在头顶各扎成一个结，形如两个羊角，故称“总角”。
贫贱之交：friendship between people who are poverty-stricken and from humble circumstances杵臼之交：friendship between people who do not care about the financial condition and social status of each other 杵：舂米的木棒；臼：石臼。
比喻交朋友不计较贫富和身分。
君子之交：friendship between gentlemen小人之交：friendship between villains狐朋狗友：people who often gather together doing something meaningless and even illegal棋友/牌友/球友：people who often meet to play chess, poker, ball. etc.战友：people who get to know each other while serving in the same army unit普通老百姓交的朋友谓“布衣之交”；有钱人与没钱人交朋友谓“车笠之交”；在逆境中结交的朋友称“患难之交”；吃喝玩乐结交的朋友称“酒肉之交”；年岁差别大，行辈不同而交情深厚的朋友称“忘年之交”；幼年相交的朋友称“竹马之交”；交情深厚的朋友谓“肺腑之交”；亲密无间的朋友谓“胶漆之交”；生死与共的朋友谓“生死之交”；情投意合的朋友称“莫逆之交”；哪怕砍头也不改变友谊的朋友称“刎颈之交”；无意中相遇而结成的朋友称“邂逅之交”；在道义上互相支持的朋友称“君子之交”；只见过一次面，交情不深的朋友称“一面之交”；仅点头打招呼，感情不深的朋友称“点头之交”；平淡而浮泛交往的朋友称“泛泛之交”；见过面但不熟悉的人称“半面之交”；旧时结拜的兄弟姊妹称“八拜之交”；交友不嫌贫贱称“杵逆之交”；宝贵而有价值的交往称“金玉之交”。
儒家思想Confucianism儒家文化Confucian culture道教Taoism墨家Mohism法家Legalism佛教Buddhism孔子Confucius孟子Mencius老子Lao Tzu庄子Chuang Tzu墨子Mo Tzu孙子Sun Tzu象形文字pictographic characters《大学》The Great Learning《中庸》The Doctrine of the Mean《论语》The Analects of Confucius《孟子》The Mencius《孙子兵法》The Art of War《三国演义》Three Kingdoms《西游记》Journey to the West文房四宝the Four Treasures of the Study（笔墨纸砚）( brush ,ink Stick ,paper , and ink stone ) 《红楼梦》Dream of Red Mansions《水浒传》Heroes of the Marshes《山海经》The Classic of Mountains and Rivers《资治通鉴》History as a Mirror《春秋》The Spring and Autumn Annals《史记》Historical Records《诗经》The Book of Songs《易经》The Book of Changes《礼记》The Book of Rites《三字经》Three-character Scriptures八股文eight-part essay五言绝句five-character quatrain七言律诗seven-character octave（一）Chinese characters were initially meant to be simple pictures used to help people remember things. After a long period of development, it finally became a unique character system that embodies phonetic sound,image, idea, and rhyme at the same time. The writing system, which was extremely advanced in ancient times, began with inscriptions on bones and tortoise shells, and these are regarded as the original forms of Chinese characters. Afterwards, Chinese characters went through numerous calligraphic styles: bronze inscriptions, official script, regular script, cursive script, running script, etc. Chinese characters are usually round outside and square inside, which is rooted in ancient Chinese beliefs of an orbicular sky and a rectangular Earth. The five basic strokes of Chinese characters are “---“ (the horizontal stroke) “│” (the vertical stroke), “／”( the left-falling stroke), “＼” (the right-falling stroke), and “乙” (the turning stroke).汉字是从原始人用以记事的简单图画，经过不断演变发展最终成为一种兼具音、形、意韵的独特文字。
现存中国古代最早成熟的文字是甲骨文，被认为是现代汉字的初形。
此后，汉字又经历了金文、隶书、楷书、草书、行书等不同的阶段。
汉字结构“外圆内方“，源于古人”天圆地方“的观念。
汉字有五种基本笔画，即：横、竖、撇、捺、折。
（二）Chinese Taoism Taoism first originated in China. The founder of Taoism is Laozi, a philosopher and thinker who lived in the late Spring and Autumn Period (770BC-476BC). Tao Te Ching whose authorship has been attributed to Laozi, is considered to be the main Taoist classic. Taoism advocates the value of a human being’s life, recommends thediscarding of all desires and worries from one’s mind, and encourages the cultivation of moral character and the nourishment of human nature. The following is an example of Laozi’s golden saying: The way that can be told of is not an unvarying way; the names that can be named are not unvarying names. It was from the nameless that Heaven and Earth sprang; The named is but the mother that rears the ten thousand creatures, each after its kind. Truly, only he that rids himself forever of desire can see the secret essences; He that has never rid himself of desire can see only the outcomes.道教是中国土生土长长的宗教。
创始人是春秋末期的哲学家、思想家老子。
道教以老子所著的《道德经》为主要经典。
道教主张“重人贵生”。
崇尚清静无为，修身养性。
“道可道，非常道。
名可名，非常名。
无名天地之始；有名万物之母。
故常无，欲以观其妙；常有，欲以观其徼”便是老子的至理名言。
（三）The Four Treasures of the Study The writing brush, ink stick, ink stone, and paper were requisite treasures in the study of the scholars of ancient China, and they are often referred to as the “Four Treasures of the Study.” The writing brush and ink stick have been used by the Chinese to write and paint since 5,000 years ago. In the Qin Dynasty (221BC---206BC), people already used feathers of different hardness and bamboo trunks to make brushes. During the Han Dynasty (206BC-220AD), man-made ink was used instead of natural ink. After paper was invented bythe Chinese, bamboo slips, wooden tablets, brocade and silk, which originally functioned as writing surfaces, gradually faded out. The ink stone was first developed with the use of writing brushes and ink. After the Song Dynasty (960AD---1279AD), the “Four Treasure of the Study” particularly referred to hubi, the writing brush produced in Huzhou, Zhejiang province; huimo, the ink stick produced in Huizhou, Anhui province; xuan paper, a kind of paper produced in Xuanzhou, Anhui province; and duanyan, the ink stone made in Zhaoqing, Guangdong province (Zhaoqing was earlier called Duanzhou). Indeed, the Four Treasures of the Study” have written the whole Chinese civilization, as it is.笔墨纸砚是中国古代文人书房当中必备的宝贝，被称为“文房四宝”。