vajrad api kathorani
mrduni kusumad api
ko nu vijnatum isvarah
vajrat api—than a thunderbolt; kathorani—harder; mrduni—softer; kusumat api—than a flower; loka-uttaranam—persons above the human platform of behavior; cetamsi—the hearts; kah—who; nu—but; vijnatum—to understand; isvarah—able.
"The hearts of those above common behavior are sometimes harder than a thunderbolt and sometimes softer than a flower. How can one accommodate such contradictions in great personalities?"
Link to this page: https://prabhupadabooks.com/cc/madhya/7/73