| 1. | Hermann hankel " , , " in most sciences one generation tears down what another has built and what one has established another undoes . in mathematics alone each generation adds a new story to the old structure . " ,
在大多数科学里,一代人要推倒另一代人所修筑的东西,一个人所树立的另一个人要加以摧毁,只有数学,每一代都能在旧建筑上增添一层楼. |
