Penicillin was indeed the product of accidental discovery, but the discovery was made, and the knowledge developed, because certain scientists had definite goals in mind. "Chance," Pastuer wrote, "favors only the prepared mind." The mind must be prepared not only by scientific training and technological know-how, but also by the awareness of social needs.
Gratitude is merely the secret hope of further favors.
In the field of observation, chance favors only the prepared mind.
Where observation is concerned, chance favors only the prepared mind.