“I compare arithmetic with a tree that unfolds upwards in a multitude of techniques and theorems while the root drives into the depths.” TreeRootsDepthTechniqueCompareMultitudesArithmeticTheorems Author:Gottlob Frege
“There is more danger of numerical sequences continued indefinitely than of trees growing up to heaven. Each will some time reach its greatest height.” HeavenGrowing UpGrowingTreeDangerHeightSequence Author:Gottlob Frege
