A professor got up in front of his class and set a large glass jar on his desk. Is this jar full or empty?" a girl in thefront row said "it's full of air"
"yes" said the professor. Then he took out a box of rocks and started placing the rocks in the jar til they came to the top. "Now is it full?"
"Yes" said a young man, " full of rocks" You are wrong "said the professor and he pulled out a box of pebbles and started to shake and wobble the pebbles into the jar til the box was empty. "now is it full?" "no " said the girl there is still room in there for water or air. "you are correct " he said and pulled out a box of sand- he emptied the box of sand into the jar. "What have we learned here?" A young man said- "Matter occupies space?""No " said the professor-"youhave missed the point" This jar represents your life, the rocks- the important things in your life your health, your friends, your family your job. The pebbles are the little things in your life- the clothes you wear, the car you drive, the type of TV you want. And the sand are all the smalllinsignificant things like tv shows and baseball, and video games. If you fill your jar with sand- there is no room for the rocks. If you fillyour jar first with rocks , everything else will find it's place in there. "Class dismissed"
