Susumu Tonegawa, born #OTD, initially failed his entrance exam for the University of Kyoto, before going on to win a Nobel Prize in 1987. He discovered the genetic principle for generation of antibody diversity. . . . . . . . . . . #science #history #scientist #genes #diversity #nobel #nobelprize #hbd #happybirthday #onthisday #discover #discovery #learn #future #motivate #motivation