"If your every sentence admits a doubt, your writing will lack authority. Save the auxiliaries would, should, could, may, might, and can for situations involving real uncertainty" - Strunk & White (THE ELEMENTS OF STYLE, p. 20).
Well, there's some revision inspiration. I'm going to highlight these doubt-filled words in my manuscript and reconsider my word choices. Great advice from Strunk & White.
Does your writing lack authority? Do you think it matters?