Calvin resumed, “But you understand, Herbie, that despite that, Drs. Lanning and Bogert want that solution.” “By their own efforts!” insisted Herbie. “But they want it, and the fact that you have it and won’t give it hurts them. You see that, don’t you?” “Yes! Yes!” “And if you tell them that will hurt them, too.” “Yes! Yes!” Herbie was retreating slowly, and step by step Susan Calvin advanced. The two men watched in frozen bewilderment.

