1. No. A successful essay will include a thesis statement—without one, the essay will have no clear focus or direction. A thesis statement is a fact, argument, or definitive opinion that, in one sentence, informs the reader of the purpose and subject matter of your essay. A thesis statement is part of the introductory paragraph and is typically placed within the first few sentences.
Here are a few examples of effective thesis statements:
 - Because Abraham Lincoln led with strict integrity, he is remembered as one of America's
   greatest presidents.
 - Building new factories in Ohio will give the state a much-needed economic boost.
 - The most important thing a person can do while driving is to obey the speed limit.