"The Buck Stops Here" is a famous sign that is a part of American
political folklore. It was given to President Truman in 1945, but it is unclear
how long it sat on his oval office desk.
The saying derives from the expression "to pass the buck", which means to avoid responsibility. The sign came to express Truman's decisiveness and accountability.
As he stated during an early crisis, "I don't pass the buck. Nor, do I alibi out of any decision I make."