Quote by Alfred Hershey

"The gene is the unit of selection, the level at which natural selection operates most effectively."

"We are all survival machines for our genes."

"Bacterial genetics opened up the entire field of molecular biology."

"The phage group changed everything we thought we knew about heredity."

"A good man treats his wife with respect."

"Kindness always comes back around."

"The power of a smile can change everything."

"Kindness is weakness to some. Not to me."