To make big changes you need to start changing one small thing at a time. At times this approach might not seem practical nor the outcome remotely plausible
In contrast to solving 80% of the problem and giving up totally on the 20%
Serving the poor is more important than soothing your own ego
Learn to accept constant failure and set backs
To make changes, you need to understand the local culture and context so as to make changes from within
Epidemics of the illness usually occur after social upheavals, in the ensuing overcrowding, poor hygiene, and malnutrition. Medicine is a social science and politics is medicine on a large scale
Cuba (a poor country) has the best health resource per capita
