Stories that have two values embedded in them are listed separately. When Truth is put into practice, it becomes Righteousness. Truth is expressed in words; while Righteousness is expressed in action. Hence, righteousness is based on truth. Without truth, there is no righteousness. Without the foundation of truth, the mansion of righteousness cannot be built.
The story named “Nothing is Useless” reveals the qualities of the spirit of inquiry (Truth) and Honesty (Right Conduct).