Robert Koch

As soon as I had found the tubercle bacillus, I found it also in the sputum of phthisical patients.

My only object has been to give the most complete description of the bacilli as they appear in the human body and in cultures.

I consider it probable that the tubercle bacillus is the actual cause of tuberculosis.

The time has come when we can look forward to the eradication of tuberculosis.

A disease is not an entity, but a process.

The ultimate goal of all research must be the prevention of disease.

It is remarkable how many different forms the tubercle bacillus can assume.

The greatest triumphs of science are those which are of benefit to humanity.

I have no doubt that eventually we shall succeed in finding a specific remedy for tuberculosis.

The most important thing in scientific research is to observe carefully and think clearly.

It was a great moment when I first saw the tubercle bacilli under the microscope.

The existence of microorganisms as a cause of disease is no longer a matter of theory, but a demonstrated fact.

I have always striven to verify my observations by every possible means.

The struggle against infectious diseases is one of the most important tasks of mankind.

The discovery of the cause of a disease is only the first step towards its eradication.

I have no other aim than to advance science and to contribute to the welfare of mankind.

It is a great satisfaction to me to see that my work has been recognized and appreciated.

The fight against cholera is a fight against ignorance and prejudice.

The microscope is the most important instrument in bacteriology.

I have always tried to be as objective as possible in my scientific investigations.