Peanuts by Charles Schulz for September 23, 1955
Transcript:
Lucy approaches Linus, who is playing with his building-block. She exclaims, "Linus, mommy says for you to go to bed right now!"<br> <br> He looks at her as she raises her hands and continues, "She says you should have been in bed an hour ago!<br> <br>He stands up and says, "Well, you know the old saying..." She asks, "What 'Old Saying'?"<br> <br> He walks off with his blanket and replies, "Five hundred years from now, who'll know the difference?"<br> <br>
The third time he’s used this saying so far