Protozoon Quotes

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. (Bertrand Russell)
That by any series of changes a protozoon should ever become a mammal, seems to those who are not familiar with zoology. View quote
Herbert Spencer