Robert Koch — "The microbes are always there; it is the soil that changes."
The microbes are always there; it is the soil that changes.
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More from Robert Koch
"The study of bacteria has opened up a new world of knowledge, and it is a world full of wonders."
"The progress of medicine depends on rigorous scientific inquiry."
"I have devoted my life to the study of bacteria, and I have found it to be a most rewarding pursuit."
"The scientific method is the only reliable path to knowledge."
"The advancement of science is a collective effort, and I am proud to be a part of it."