All the world is topsy-turvy, and it has been topsy-turvy ever since the plague.

Disease is not of the body but of the place.

The best quarantine is hygiene.

Health can make money, but money cannot make health.

Infectious disease is one of the few genuine adventures left in the world.

Diseases are not immutable entities but dynamic social constructions that have biographies of their own.

’Tis the destroyer, or the devil, that scatters plagues about the world.

Disease generally begins that equality which death completes.

Men take diseases, one of another. Therefore let men take heed of their company.

We should always presume the disease to be curable until its own nature proves it otherwise.

It is strange indeed that the more we learn about how to build health, the less healthy Americans become.

Everyone who is sick is someone else’s patient zero.

The diseases of the present have little in common with the diseases of the past save that we die of them.