加州理工学院座落在加州巴萨迪那市(Pasadena)，在洛杉矶东北方约十英哩处。
加州理工的师资力量非常雄厚。以下为该校对PS的写作指点。
原文地址：http://www.surf.caltech.edu/students/personal_statementl.html
The personal statement is a significant part of your application. It provides other people with important information about you as a candidate for an undergraduate research position. It provides potential mentors and the selection committee with an impression of you as an individual.It is a way to measure your writing ability.（也是写作能力的表现机会）
It states clearly your personal and professional goals and how participation in this program will help you achieve them.The personal statement can be used to determine your enthusiasm for participating in the program, your enthusiasm for the field, your maturity, your creativity, and your curiosity. （目标以及这个学习如何帮助你达到目标）
The people who will read your statement include potential mentors and evaluators who will recommend student selection.
There is no general recipe which, if followed to the letter, will guarantee a good personal statement. A good statement will anticipate and answer questions that prospective mentors or evaluators might ask about you. The questions below are not meant to be exhaustive or a check list. They are posed to stimulate your thinking about what you want to do and why you want to do it.下面这些问题将帮你构思ps写作。
Your personal statement should clearly present how and why you became interested in a particular area of research and the steps you have taken to foster your interests. The people who read your personal statement should see your growth and interest over a period of time.
Some questions to consider when writing your personal statement: