Robert Koch

The discovery of the tubercle bacillus was the culmination of many years of patient research.

Science knows no nationality, because knowledge is the common property of mankind.

The greatest obstacle to progress is not ignorance, but the illusion of knowledge.

I have often been misunderstood, but that has never deterred me from my path.

The ultimate test of a scientific theory is its practical application.

My work on tuberculosis was a labor of love.

The future of medicine lies in the prevention of disease, not in its cure.

I have always believed that careful observation is the key to scientific discovery.

It is a great privilege to be able to contribute to the progress of human knowledge.

The battle against infectious diseases is a continuous one.

I have always been driven by a desire to understand the causes of disease.

The more we know about microorganisms, the better equipped we are to combat them.

One must be prepared to make sacrifices for the sake of science.

The results of my investigations have been confirmed by many other workers.

The field of bacteriology is still in its infancy, but its potential is immense.

I have never sought personal glory, but only the truth.

The fight against disease requires international cooperation.

My greatest reward is the knowledge that my work has alleviated human suffering.

The scientific method is the only reliable path to knowledge.

I have devoted my life to the study of infectious diseases.