Your past experiences have taught you that you can trust your sword to wipe out every ferocious beast, but you should never trust someone to give up everything for you out of love.
He wasn't wrong.
But someone asked him: why doesn't giving up all your feelings count as love?
"I'm a prince of Ligran. You and I come from different star systems, and our countries know both war and peace. I won't give up my claim to the throne, which means I won't marry into your empire, and neither will you. But that doesn't stop me from liking you. Admit it, Dekelong, you don't hate me!"
"No, I hate you. I despise you!"
They argued and fought, but still managed to live their lives together, until even Dekelong couldn't tell whether it was love.
The prince, who hated thinking, flicked a hand dismissively. Whatever.
Theme: Live life earnestly