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Alexander Fleming (1881-1955), the British microbiologist who shared the Nobel Prize for Medicine in 1945 as a result of his discovery of penicillin, was touring a modern laboratory near the end of his life. Fleming's discovery may years earlier was occasioned by a speck of dust accidentally landing on an uncovered culture plate.

The new laboratory where he now found himself was a sterile, dust-free, and air conditioned facility in which many scientists were hard at work.

"What a pity you did not have a place like this to work in," said his guide. "Who can tell what you might have discovered in such surroundings."

"Not penicillin," muttered Fleming.

----------------A Final Thought ...

"Always do right. This will gratify some people and astonish the rest."

- Mark Twain (1835-1910), U.S. humorist, writer, and lecturer. The quote was one of two displayed on president Harry S. Truman's desk during his term of office.