quote of the day

The following is the final paragraph of my microbiology textbook's section detailing the history of microbiology and the series of experiments and scients who disprooved the theory of spontaneous generation.
"Pasteur's work provided evidence that microorganisms cannot originate from mystical forces present in nonliving materials. Rather, any appearance of "spontaneous" life in nonliving solutions can be attributed to microorganisms that were already present in the air or in the fluids themselves. Scientists now believe that a form of spontaneous generation probably did occur on the primitive Earth when life first began, but they agree that this does not happen under today's environmental conditions."