“Virtue is not hereditary.”
“When we are planning for posterity, we ought to remember that virtue is not hereditary.”
“DNA was the chemical material on which hereditary information was recorded, while a gene was one unit of that nearly infinite amount of hereditary information.”
“What is not hereditary cannot be permanent.”
“Wrinkles are hereditary. Parents get them from their children.”
“Insanity is hereditary. You can get it from your children.”