Pertinence
/ˈpɜːrtnəns/
Definition 1 of 1
Pro Tip 1/3Use in Arguments
Employ 'pertinence' to strengthen points by showing their direct connection to the topic. 
His evidence lacked pertinence, weakening his argument.
Pro Tip 2/3Avoid Subjectivity
Understand that 'pertinence' is objective; what is pertinent should be widely recognized, not just personal opinion. 
Despite your interest, personal anecdotes often lack pertinence in academic writing.
Pro Tip 3/3Cultural Sensitivity
Note that what is pertinent in one culture may not be in another, especially in discussions with diverse perspectives. 
The pertinence of that saying might not resonate with all cultures equally.