What does the expression “truth in the last resort” mean?

The expression "truth in the last resort" refers to a concept that truth is the ultimate authority in any situation, regardless of any other external factors. This concept is based on the idea that truth is absolute and cannot be altered or influenced by any other external forces. This means that when all other options have been exhausted, truth can be relied upon as the ultimate source of information and guidance. This can be seen in situations where one is seeking an answer to a difficult question, or when one is trying to make a difficult decision. In such cases, the truth should be the last resort, as it is the only source of information that can be relied upon to provide an accurate and reliable answer.