Then I made two other mistakes. One was that I didnât fully appreciate the importance of simply provisioning traditional institutional reassurance. By asking and challenging everything, you create a lot of uncertainty, and that uncertainty can be debilitating to the ongoing functioning of the organization. I failed to appreciate that if youâre going to be questioning everybody and challenging everybody, you have to do a lot of reassuring in return. I didnât say, âIsnât Harvard great?â If I had said that, it would have been much more reassuring.â - Lawrence Summers.