“But of all motives, none is better adapted to secure influence and hold it fast than love; nothing is more foreign to that end than fear.”
Omnium autem rerum nec aptius est quicquam ad opes tuendas ac tenendas quam diligi nec alienius quam timeri.
Marcus Tullius Cicero (-106–-43 BC) Roman philosopher and statesman
Book II, section 7; translation by Walter Miller
De Officiis – On Duties (44 BC)