A mother is scolding her son:

-Now, John, don't be selfish. Let your little brother share your bicycle with you.

-But, Mother, I do. I ride it down the hill and he rides it up the hill.

 (scold = επιπλήττω / μαλώνω, selfish = εγωιστής)

What am I? Of all the things in the world, I am the shortest and the longest, the swiftest and the slowest. I am the thing people waste the most. Yet, they need me more than anything else, for without me nothing can be done. What am I?



Well, Jim K. found the answer this morning: the time!!!