Always try to use the language so as to make quite clear what you mean and make sure your sentence couldn't mean anything else.
There really is something to be said for occasionally putting diplomacy aside and laying one’s cards on the table. There is value in calling evil by its name.
We should not write so that it is possible for [the reader] to understand us, but so that it is impossible for him to misunderstand us.
Marcus Fabius Quintilianus
When you have something in black and white, you can deal with it quicker.
Better to say something simply instead of giving people a bunch of vague metaphors to mull over.
An opinion which is ... to establish a principle never before recognized, should be expressed in plain and explicit terms.
I've never walked out of a room and had a disagreement as to what was said.
People may find it more comfortable to listen to us if we equivocate, but in the long run only words that discomfort them are going to change our situation.
No blur of inexactness, no cloud of vagueness, is allowable in good writing; from the first seeing to the last putting down, there must be steady lucidity and uncompromise of purpose.
It is always hazardous to express what one has to say indirectly and allusively.
