From the scene early on in Atlas Shrugged where Dagny Taggart told her brother Jim that she had canceled his order with Associated Steel in favor of purchasing Rearden Metal track instead:
[Dagny] had turned to go, when [Jim] spoke again - and what he said seemed bewilderingly irrelevant. "That's all right for you, because you're lucky. Others can't do it."
"Other people are human. They're sensitive. They can't devote their whole life to metal and engines. You're lucky - you've never had any feelings. You've never felt anything at all."
Philip Rearden later demanded that Hank give him a job. During the course of their discussion, he stated:
"You haven't any feelings. You've never felt anything at all. You've never suffered!"
It was as if a sum of years hit Rearden in the face, by means of a sensation and a sight... You've never suffered, the dead stare of the eye was saying, you've never felt anything, because only to suffer as to feel - there's no such thing as joy, there's only pain and the absence of pain; only pain and the zero, when one feels nothing - I suffer, I'm twisted by suffering, I'm made of undiluted suffering, that's my purity, that's my virtue - and yours, you the untwisted one, you the uncomplaining, yours is to relieve me of my pain - cut your unsuffering body to patch up mine, cut your unfeeling soul to stop mine from feeling - and we'll achieve the ultimate ideal, the triumph over life, the zero!
The phrases are clearly parallel. Was Hank's realization basically what Jim Taggart was saying here - "you've never felt anything at all" meaning that only to suffer is to feel?
Also, the text says that Jim's comments "seemed bewilderingly irrelevant" (which seems to imply that they actually weren't irrelevant after all). How does Hank's realization here make it Jim's comments relevant?