Tone

“The children now love luxury; they have bad manners, contempt for authority; they allow disrespect for elders and love chatter in place of exercise. Children now are tyrants, not the servants of their households. They no longer rise when elders enter the room. They contradict their parents, chatter before company, gobble up dainties at the table, cross their legs, and tyrannize their teachers.”

- attrib. (possibly incorrectly)to Socrates c.410 BC

Or shortened to:
“Children today are tyrants. They contradict their parents, gobble their food and tyrannize their teachers. I despair for the future.”
Socrates 400 BC