<span>He it was who fought his way through the white water</span>
Thesis definition: a statement or theory that is put forward as a premise to be maintained or proved
So,
Without having a recognizable thesis, your reader will not fully understand what point you are trying to get across. Furthermore, your writing will seem to have no meaning or purpose, and will not inform the reader. To clarify, if you do not have a recognizable thesis, your writing would be pointless.
<span>Mr.Nuttel is staying in the country in order to take a "rest cure." He is suffering from a nervous disorder and, as he tells Mrs. Sappleton, "The doctors agree in ordering me complete rest, an absence of mental excitement, and avoidance of anything in that can exhaust him.</span>
