"For a large number of problems there will be some animal of choice or a few such animals on which it can be most conveniently studied."

"The still more limited number of adepts who retain physical bodies remain in even closer touch with us, in order to fill certain offices, and to do certain work necessary for our evolution; and it is …"

"It is self-evident that St. Louis affected me more deeply than any other environment has ever done. I feel that there is something in having passed one's childhood beside the big river, which is incom…"

"It seems to me that science has a much greater likelihood of being true in the main than any philosophy hitherto advanced . In science there are many matters about which people are agreed; in philosop…"

"Every fetus becomes female unless it is steeped in male hormone, produced by a signal from the testes. Before birth, therefore, a male is already beyond the female. But to be beyond is to be exiled fr…"