Look at a stone cutter hammering away at his rock, perhaps a hundred times without as much as a crack showing in it. Yet at the hundred-and-first blow it will split in two, and I know it was not the last blow that did it, but all that had gone before.

看看一个石匠用锤子不停地敲打他的石头，也许敲了一百遍，但石头上连一条裂缝都没有。然而，在第一次一百次的打击中，它会分裂成两半，我知道这不是最后一次打击，而是以前所有的打击。