Those who can, do; those who can’t, teach; those who can’t teach, police grammar on the Internet.
Those who can, do; those who can’t, teach; those who can’t teach, police grammar on the Internet.
Those who can, do; those who can’t, teach; those who can’t teach, police grammar on the Internet.
Those who can, do; those who can’t, teach; those who can’t teach, police grammar on the Internet.