संघा हि संहतत्वादधृष्याः परेषाम् ॥ कZ_११.१.०२ ॥
saṃghā hi saṃhatatvād adhṛṣyāḥ pareṣām
Corporate polities (saṅghas) are hard for outsiders to overpower because they act in cohesion.
Because their cohesion (saṃhatatva) prevents easy intimidation, bribery, or decapitation of leadership by an outsider.