Root feet

I asked Joseph what he learned about at school. At first he said he forgot, so I started to ask if he had learned about random things like zebra mountains, purple hippopotamus, pink elephants, and so forth. Joseph started to laugh and said, "No. We learned about roots!" I asked him what roots did and he answered that they got water for the plant. I asked how we got water and he said that we drink it. He then said, "If we had roots, they would be our feet. Then we wouldn't be able to move anywhere. That would be silly. Then we would have green arms and flowers for our heads. Then we wouldn't be able to see anything because flowers don't have eyes." He really thought this through and was very logical in his thinking. :)