Letters are signs that are used for exchanging thoughts between people. Letters can be made, developed and changed at any time, and they have the possibility of being simplified for convenience. The ancient system of Chinese characters was complicated because the characters originated from drawings. They were eventually changed, step by step, into a simple style easy for usage. In the 1950s-60s, China simplified its characters, which had been inconvenient to use for a long period. A number of characters that were generally useless were dropped, and a number of common but complicated characters were simplified. This process involved the simplification of characters, the reduction of the number of characters retained for common use. the design of new characters and the redesign of a few characters, the abbreviation of complicated spellings, and the changing of some characters to a new style. The motivation of all this change was to make it far easier to learn to read and write Chinese. However, there are weaknesses in the new simplified system, compared with the traditional style, primarily because simplification often ignored the traditional method of forming letters. This has resulted in major difficulties in understanding altered characters. It would have been better to analyse all Chinese characters according to the traditional theory before modern simplification had been undertaken. Because this was neglected, there are many modern characters that are not formed according to the traditional method. I have summarily studied all simplified characters from ancient to present-day China, but I have emphasized modern simplified characters. I studied ancient characters that evolved into simpler forms before analysing modern characters. I also studied some of the methods used recently to simplify characters and the resulting characters themselves. In addition I point out the reasonable and unreasonable aspects of those methods, and show some advantages and disadvantages of the simplified characters

Classical Chinese and English are grammatically similar. So We can learn classical Chinese by using English grammar which we have learned for a long time. There are many kinds of word classes in English and classical Chinese but only noun and verb are analyzed in this paper. The Chinese noun`s usage is similar to that of English in word order. But there are different forms in their shape of a word. Chinese noun does nor change its`form although it is moved to the other part in the sentence and the case is changed. On the other hand, English noun changes its` form according to singular plural and case. Chinese verb does not change its` form like English even though number and tense are changed. Except for this, there are many resemblant shapes of using verbs between Chinese and English. We can find out the usage of transitive intransitive auxiliary verb awarding verb causative verb and be have verb is very similar. The western people are accustomed to logical and analytic thinking. They like to classify somewhat. But eastern Chinese people do not so. they like to be significant inclusive and adaptable. We can also find out the perceive difference between the two in their language habits.