"I haven't compiled a list," Daneel says, rather doubtfully. It's easy to let the conversation be steered away to more pleasant things, and certainly no hardship on his part. "If I were to do such a thing, it would be very lengthy."

What are the crucial aspects of being human? Mortality, which he has no desire to experience; art and music, which perplex him; growth and procreation, which might be a bit premature; sexuality, which is more acceptable in some cultures than others and is possibly rude to inquire about so casually. He needs a more educated opinion about being human, clearly.

"What would you suggest I try to experience next?"