Jonas Salk Quote

Some people are constructive, if you like. Others are destructive. It's this diversity in humankind that results in some making positive contributions and some negative contributions. It's necessary to have enough who make positive contributions to overcome the problems of each age.


Academy of Achievement interview (1991)


Some people are constructive, if you like. Others are destructive. It's this diversity in humankind that results in some making positive...

Some people are constructive, if you like. Others are destructive. It's this diversity in humankind that results in some making positive...

Some people are constructive, if you like. Others are destructive. It's this diversity in humankind that results in some making positive...

Some people are constructive, if you like. Others are destructive. It's this diversity in humankind that results in some making positive...