User:Robkelk/sandbox/YKTTW/Voice of Reason
{{trope workshop}}
{{tropestub}}
The Voice of Reason is, according to Merriam-Webster, "a person who influences others to act sensibly".
...more here...
Supertrope to Closer to Earth (where a character is shown or stated to be sensible because the character is a member of a minority) and Only Sane Man (where the character is the only one who is sensible). Compare with Cassandra Truth (where the character tries to influence others but is ignored) and Surrounded by Smart People (where the character shows by example that intelligence is not necessarily sensible).
Examples of Robkelk/sandbox/YKTTW/Voice of Reason include: