This is one of the most classic philosophical problems. Usually,
logic seems like the correct answer - but we're fully aware that
sometimes our emotions take over and we feel like they really do mean
something. Again, it's something that we can really explain, but we
feel like we know exists.
But you're right - we can't really know what the best one is. If we
always followed our heads, we would lose a sense of human connection
and compassion, but if we always followed our hearts, our
infrastructure would probably fall apart at some point.
What do you think?