"I once believed in Jenner; I once believed……" — Walter Hadwen
"I once believed in Jenner; I once believed in Pasteur. I believed in vaccination. I believed in vivisection. But I changed my views as the result of hard thinking."
"I once believed in Jenner; I once believed in Pasteur. I believed in vaccination. I believed in vivisection. But I changed my views as the result of hard thinking."