I am writing a statement of purpose for my PhD application in the US. I marked in memos what each paragraph is aimed to deliver. Par#2 has many technical details, so please refrain from over-editing. Par#3 is broken down to&nbsp;5 separate&nbsp;parts - each for&nbsp;different schools. I tried my best to throw in everything I want to say, but I hope you can&nbsp;check the whole essay for grammar mistakes, general flow, and tone. I want it&nbsp;to sound confident,&nbsp;concise, and professional. I am also open to any comments or suggestions about the overall&nbsp;construction or format of the essay. Thank you.