"There are three classes of people: Those who see, those who see when they are shown, those who do not see"
"There are three classes of people: Those who see, those who see when they are shown, those who do not see"
"There are three classes of people: Those who see, those who see when they are shown, those who do not see"
"There are three classes of people: Those who see, those who see when they are shown, those who do not see"
"There are three classes of people: Those who see, those who see when they are shown, those who do not see"
"There are three classes of people: Those who see, those who see when they are shown, those who do not see"
"There are three classes of people: Those who see, those who see when they are shown, those who do not see"
"There are three classes of people: Those who see, those who see when they are shown, those who do not see"