In short, instead of merely stating a general fact or resorting to a simplistic pro/con statement, you must decide what it is you have to say.
Tips: Do not expect to come up with a fully formulated thesis statement before you have finished writing the paper.
Normally you will continue to refine your thesis as you revise your argument(s), so your thesis will evolve and gain definition as you obtain a better sense of where your argument is taking you.
Tip: Check your thesis: Your thesis should be limited to what can be accomplished in the specified number of pages.
It should present the topic of your paper and also make a comment about your position in relation to the topic.
Your thesis statement should tell your reader what the paper is about and also help guide your writing and keep your argument focused.
Tip: In order to be as clear as possible in your writing: These words tell the reader next to nothing if you do not carefully explain what you mean by them.
Never assume that the meaning of a sentence is obvious.
Use your own words in thesis statements; avoid quoting.
Crafting an original, insightful, and memorable thesis makes a distinct impression on a reader.