Noun
One skillful to hit a mark with a missile; one who shoots well.
One who makes his mark, instead of writing his name, in signing documents.
Source: Webster's dictionaryEverything you do, if not in a relaxed state will be done at a lesser level than you are proficient. Thus the tensed expert marksman will aim at a level less than his/her student. Bruce Lee
A man who uses a great many words to express his meaning is like a bad marksman who, instead of aiming a single stone at an object, takes up a handful and throws at it in hopes he may hit. Samuel Johnson
Social media has created a legion of social delinquents, billions of people speaking not their minds but their spleens, venting everything from the gum-cracking snark befitting a hair-twisting mallrat to the froth-flecked rage of a bell tower marksman. Steven Weber
The bowman who is a bad marksman has a lie ready. Mexican Proverb
The marksman hitteth the mark partly by pulling, partly by letting go. Egyptian Proverb
A good marksman may miss. Romanian Proverb