I heard the Prophet ﷺ, "Souls are like recruited troops: Those who are like qualities are inclined to each other, but those who have dissimilar qualities, differ."  

سَمِعْتُ النَّبِيَّ ﷺ يَقُولُ الأَرْوَاحُ جُنُودٌ مُجَنَّدَةٌ فَمَا تَعَارَفَ مِنْهَا ائْتَلَفَ وَمَا تَنَاكَرَ مِنْهَا اخْتَلَفَ وَقَالَ يَحْيَى بْنُ أَيُّوبَ حَدَّثَنِي يَحْيَى بْنُ سَعِيدٍ بِهَذَا