Every time I post, I urge people to keep pounding the rock. This phrase comes from the story of a stonecutter told by Danish-American muckraker Jacob Riis. “When nothing seems to help,” Riis wrote, “I go and look at a stonecutter 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 that blow that did it, but all that had gone before.”

We must keep pounding the rock, because we don't know which blow is finally going to make things break loose.

It is that way in life, too. Great changes come very slowly, then all at once. The Berlin Wall existed for decades, and in one night, it fell. Things slowly build and then explode all at once.

Rocks split. Walls fall. In what feels like a moment.