Alexander Fleming

The medical profession has a great responsibility in seeing that penicillin is used wisely.

I am only one of many who have contributed to the development of penicillin.

The discovery of penicillin was a series of lucky accidents.

I can only warn. It is up to others to heed the warning.

The therapeutic value of penicillin is enormous, but its indiscriminate use could lead to disaster.

It is not an exaggeration to say that the discovery of penicillin has saved millions of lives.

I am often asked if I foresaw the impact of penicillin. My honest answer is no.

The future of chemotherapy lies in the intelligent use of these new antibacterial agents.

It was not easy to convince people of the importance of penicillin in the early days.

Some people have been very enthusiastic about penicillin, others less so.

The greatest reward for a scientist is the advancement of knowledge.

I never thought of myself as a great man, just a man who made a great discovery.

The mould grew, and then I saw the clear space around it.

It is a matter of great satisfaction to see penicillin saving so many lives.

I am not a very good speaker, but I hope my work speaks for itself.

The story of penicillin is a lesson in serendipity and perseverance.

I have always been interested in the fight against disease.

The purification of penicillin was a major triumph of chemistry.

I am very grateful for the recognition I have received, but the real credit belongs to the mould.

We must be careful not to create a race of penicillin-resistant superbugs.