“Professor Johnston often said that if you didn't know history, you didn't know anything. You were a leaf that didn't know it was part of a tree.”

“If you don't know history, then you don't know anything. You are a leaf that doesn't know it is part of a tree. ”

“If you [don't] know history, then [you don't] know anything. You [are] a leaf that [doesn't] know it [is] part of a tree.”

“They always say they didn't. I never heard of one who said, 'You know, I deserve this.' Never happens.”

“The system didn't screw you. The system revealed you.”

“They didn't understand what they were doing.I'm afraid that will be on the tombstone of the human race.”

“Kids didn't have huge backpacks when I was their age. We didn't have backpacks at all. Now it seemed all the kids had them. You saw little second-graders bent over like sherpas, dragging themselves through the school doors under the weight of their packs. Some of the kids had their packs on rollers, hauling them like luggage at the airport. I didn't understand any of this. The world was becoming digital; everything was smaller and lighter. But kids at school lugged more weight than ever.”