The nose sits at the exact centre of the face, which is why every physiognomic tradition treats it as the seat of self: drive, resources, and the way a person takes up space.
The Roman nose, with its raised bridge, is the shape of initiative. Readers assign it to people who move before consensus arrives. Its opposite in temperament is the button nose, whose shortened bridge is read as present-tense living — quick to trust, quick to recover.
Between them sits the Greek nose, an unbroken straight line from brow to tip, historically the marker of principle and consistency; and the celestial nose, whose lifted tip reads as optimism and open-handedness with money.
Width matters as much as profile. A broad nasal base is traditionally tied to endurance and accumulation, while a narrow base is tied to refinement and selectivity. Nostril visibility from the front is read, somewhat unkindly, as candour about one's own appetites.
The honest caveat: nose shape is largely a function of ancestry and cartilage development, and any reading that flatters one lineage over another is telling you about the reader, not the nose.