Alexander Fleming — "It is not often that one finds a substance that is both highly bactericidal and …"
It is not often that one finds a substance that is both highly bactericidal and non-toxic to animal tissues.
It is not often that one finds a substance that is both highly bactericidal and non-toxic to animal tissues.
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"It has been said that I am a lucky man. I agree. I have been very lucky."
"It is a remarkable fact that this substance, which is so potent against bacteria, is almost harmless to animal tissues."
"I am only one of many who have contributed to the development of penicillin."
"The story of penicillin has been told so often that it is almost a cliché."
"I never thought of myself as a great man, just a man who made a great discovery."
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