he is rich, but
Él es rico, pero vive como un mendigo.
He is rich, but he lives like a beggar.
He is rich, but he is bad.
He is rich, but he is not happy.
Es cierto que él es rico, pero es un miserable.
It's true that he's rich, but he's a miserable wretch.
Él es rico, pero su hermano mayor es pobre.
He is rich, but his older brother is poor.