The World Is Not Flat,

As You Get To The End Of The Project You Want To Run All The Tests Cases Against One Version And Make Sure That You Know That That Version Passed Everything. And So As You Get Late In The Project You Get A Little More Conservative About Making Radical Changes To The Software.

Some Very Poor Countries Run Great Vaccination Systems, And Some Richer Ones Run Terrible Programs.

The Next Time Someone Tells You We Can Trim The Budget By Cutting Aid, I Hope You Will Ask Whether It Will Come At The Cost Of More People Dying.

Don't Let Yourself Be Lulled Into Inaction.

People Often Overestimate What Will Happen In The Next Two Years And Underestimate What Will Happen In Ten.