Peanuts by Charles Schulz for May 06, 1958
Transcript:
Lucy and Charlie Brown lean on the wall. Lucy says, "That kid in school sure said some mean things about you today.."<br> <br> Charlie Brown grimaces as Lucy asks, "How come you didn't hit him?"<br> <br> He replies, "I have observed that whenever you try to hit somebody, there is a tendency for them to try to hit you back."<br> <br>Lucy says, "You are a shrewd judge of human nature, Charlie Brown."<br> <br>
We call it “Newton’s Third Law”