Much of what he says is of necessity erroneous, because it is influenced by the standard of knowledge of his time; but his criticisms are remarkable, while always dignified. He reflects the scientific errors of the period in which he lived, but with hints of a more advanced understanding.

Organic life, we are told, has developed gradually from the protozoon to the philosopher, and this development, we are assured, is indubitably an advance. Unfortunately it is the philosopher, not the protozoon, who gives us this assurance.

Innovation and commerce are as powerful tools for creating social progress as they are for driving technological advancement

It is not the rich man's son that the young struggler for advancement has to fear in the race of life, nor his nephew, nor his cousin. Let him look out for the "dark horse" in the boy who begins by sweeping out the office.