Robert Koch

The discovery of the cholera vibrio will save countless lives.

Hygiene is the first line of defense against infectious diseases.

I have no patience for those who deny the role of bacteria in disease.

The microscope is the eye of the microbiologist.

Persistence is the key to scientific discovery.

Diseases are not conquered by words alone, but by action and evidence.

The bacillus is the true culprit in many epidemics.

In medicine, truth is found in the laboratory, not in speculation.

My work on tuberculosis has shown that prevention is possible through isolation.

Life is short, but science endures.

The germ theory is the foundation of modern medicine.

Cholera spreads through contaminated water; clean it, and the disease retreats.

I regret that my discoveries came too late for many.

Bacteria do not respect borders; neither should our efforts to combat them.

The joy of discovery is the greatest reward a scientist can have.

Tuberculin was a step, not the cure, but every step counts.

Nature hides her secrets well, but persistence unveils them.

Infectious diseases are the great levelers of humanity.

My postulates must guide future research in bacteriology.

The world owes much to the unseen world of microbes.