Something unknown is doing we don't know what.

“Whether in the intellectual pursuits of science or in the mystical pursuits of …”

“We often think that when we have completed our study of one we know all about t…”

“We used to think that if we knew one, we knew two, because one and one are two.…”

“I believe that there are 15,747,724,136,275,02,577,605,653,961,181,555,468,044,…”