willingly
Si no lo entienden por las buenas lo van a entender por las malas.
If they don't understand it the easy way, they'll understand it the hard way.
No quieren hacerlo por las buenas, lo quieren por las malas.
They don't want to do it the easy way, they want to do it the hard way.
— El quinto elemento (1997)
He gave it to me willingly.
Arreglaremos las cosas por las buenas.
We'll settle things amicably.