Mosquito in a bucket

People often use the drop-in-a-bucket metaphor when talking about Peace Corps work. It's one of many inspirational/motivational/philosophical mantras we use to affirm that our person-to-person development work does, in the long run, make a difference. Today I found another quote to add to the list:

"If you think you are too small to be effective, you have never been in bed with a mosquito." - Betty Reese