Sweetness of Intelligence is a wrong translation of Buddhi Maadhuryam.
Anyways, Intelligence, Memory and Wisdom are the 3 elements of the Buddhi that i mean.
Life is worth it when all you do lead to positive energy.
To yourself, to all around you..to your mother earth..and to the entire universe.
What about a painter who paints sad /negative portraits?
If the emotion that it generates, in turn leads to anything positive, then that is positivity.
Buddha(Mercury) is the signifactor planet of Intelligence vis a vis logic.
Chandra or Moon for clarity of mind and memory
and Guru or Jupitor for wisdom.
so which all houses are in question?
5th house, 9th house and lagna or ascendant, primarily.
what if you have a rahu or sani in ascendant?
what if you have 5th lord sani in 12 th house?
what if the new moon is conjunct with ketu in 5th in Kumbha/ aquarius?
we see great scientists with these yogas!
dont tell me poorva janma vasanas!
its your interpretation that needs finer tuning.
science = laws/
laws = definitions = limitations
anything with real life expands...