Then he dumped some gravel in and shook the jar causing pieces of gravel to work themselves down into the spaces between the big rocks. By this time the class was onto him. And he reached under the table and brought out a bucket of sand. He started dumping the sand in and it went into all the spaces left between the rocks and the gravel. Then he grabbed a pitcher of water and began to pour it in until the jar was filled to the brim.
Time is precious.
There never seems to be enough of it to go around to do everything we want to do, so we spend our lives making choices.