From google images

In view of all the olympics games going on and my craze for many kind of sports (running, swimming, badminton, cycling...), lets say an alethics sits around all day instead of putting in the hours for training. You dont command (anyone's) respect and your existence is like those imprinted upon the sand- it gets washed away by the tides, leaving behind a fresh bed of sand that fails to acknowledge any presence.

But, sandcastles are built out of (the-very-same-bed-that-fails-to-hold-your-existence) sand you see.