mistake!

When judge commits a mistake
it becomes a new law.

A doctor commits a mistake
it becomes a failure.

A engineer commits a mistake
it becomes a new machine.

A chemists commits a mistake
it becomes a new drug.

A teacher commits a mistake
it becomes a new lesson

A physicists commits a mistake
it becomes a new theory


But when a student commits a mistake
it always remains as a mistake! mistake! mistake.