Alexander Fleming — "The story of penicillin is a lesson in serendipity and perseverance."
The story of penicillin is a lesson in serendipity and perseverance.
The story of penicillin is a lesson in serendipity and perseverance.
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"I can only warn. It is up to others to heed the warning."
"It is the common lot of discoverers to be misunderstood."
"I have been asked to say a few words about the discovery of penicillin. I must confess that I have been asked to do this so often that I am beginning to be a little tired of it."
"It is not wise to be too dogmatic in science. One must always be prepared to change one's mind."
"That's funny."
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