The great 20th century British statesman Winston Churchill (1874 – 1965) was a master of communication as well as politics:
‘Think like a wise man but communicate in the language of the people.’
Say what you have to say and, the first time you come to a sentence with a grammatical ending, sit down.
‘Courage is what it takes to stand up and speak; courage is also what it takes to sit down and listen.’
‘Broadly speaking, the short words are the best, and the old words best of all.’