(Srila Prabhupada in Vrindavan, 1977—click to enlarge)
"n.b. Regarding your question about sufferings of master, you can simply ponder over Lord Christ's crucification." [handwritten]
(Srila Prabhupada Letter, December 31, 1972)
n.b. is short for nota bene, which is a Latin phrase meaning "note well" and is used to mark something as particularly important.
THE PRABHUPADA CONNECTION
Ponder over Lord Christ's Crucification