1 and 7 together
The 1 and the 7 are in contrast.
They do share one essential trait: both value their autonomy. The 1 lives it through action, deciding alone and fast. The 7 lives it through thought, by forging their own convictions away from the bustle. This shared need for space is what brings them together, and their relationship to time is what sets them apart.
When each accepts how the other works, the pair gains a rare quality: the energy of one and the depth of the other.
The danger lies in distance. Two independent people can end up living in parallel, each in their own sphere, never really sharing what preoccupies them.