"Nature makes penicillin; I just found it."

"Penicillin cures, but wine makes people happy."

"I often wonder how many other useful molds have been thrown away by bacteriologists."

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

"I found penicillin and have given it free for the benefit of humanity. Why should it become a profit-making monopoly of manufacturers in another country?"