We are inescapably the result of a long heritage of learning, adaptation, mutation and evolution, the product of a history which predates our birth as a biological species and stretches back over many thousand millennia... Going further back, we share a common ancestry with our fellow primates; and going still further back, we share a common ancestry with all other living creatures and plants down to the simplest microbe. The further back we go, the greater the difference from external appearances and behavior patterns which we observe today.
The Microbe is so very small You cannot make him out at all.
The world was sick, and the ills from which it was suffering were mainly due to the perversion of man, his inability to live at peace with himself. The Microbe was no longer the main enemy; science was sufficiently advanced to be able to cope with it admirably. If it were not for such barriers as superstition, ignorance, religious intolerance, misery and poverty.brock chisholm