Further, because we are not used to writing about ourselves and being so close to the subject, we cannot assess the sincerity of our own writing.
Thousands of students every year will read this same advice, whether in a guidebook or even in the application instructions themselves, but they simply will not be able to put it into practice. If you can be one of the few who truly understand what it means to be sincere, then you will already have separated yourself from the pack in a crucial way.
You might question how a reader who doesn't know you can judge your statement's sincerity. The basis for judgment usually lies in the context your reader has developed from reading hundreds or thousands of other essays. Assessing your essay against others is one essential area in which we can offer a more critical eye than your friends, relatives, or teachers who have not accumulated the expertise specific to the personal statement.
Moreover, our perspective in reading your essay is just as objective as your admissions reader's perspective will be.
C、Background and Motivation （综合背景和学习动机）
Detail your interest in and exposure to your particular discipline in a thoughtful way. You are aspiring to become a professional in your field; therefore, you should express an interest in contributing something novel to it. Make clear that you have a realistic perception of what this field entails. Refer to experiences (work, research, etc.), classes, conversations with people in the field, books you've read, seminars you've attended, or any other sources of specific information about the career you want and why you're suited for it. Remember not to make this a laundry list in which you rattle off impressive names or theories. Any specific people or ideas you mention should be thoughtfully addressed and seamlessly interwoven into the essay as a whole.