Now when naturalists observe a close agreement in numerous small details of habits, tastes and dispositions between two or more domestic races, or between nearly-allied natural forms, they use this fact as an argument that all are descended from a common progenitor who was thus endowed; and consequently that all should be classed under the same species. The same argument may be applied with much force to the races of man.

It is well-known that those who have charge of young infants, that it is difficult to feel sure when certain movements about their mouths are really expressive; that is when they really smile. Hence I carefully watched my own infants. One of them at the age of forty-five days, and being in a happy frame of mind, smiled... I observed the same thing on the following day: but on the third day the child was not quite well and there was no trace of a smile, and this renders it probable that the previous smiles were real.

We are not here concerned with hopes or fears, only with truth as far as our reason permits us to discover it.

It may be conceit, but I believe the subject will interest the public, and I am sure that the views are original.

Man, wonderful man, must collapse, into nature's cauldron, he is no deity, he is no exception.

Ignorance more frequently begets confidence than does knowledge.

An agnostic would be the more correct description of my state of mind.