Summary
This quote suggests that heredity, or the genetic traits passed down from our parents, is essentially the result of the environment in which our ancestors lived. It implies that our genetic makeup, which influences our physical and mental characteristics, is shaped by the experiences and conditions that our ancestors endured. In other words, instead of solely relying on genetic factors, the quote highlights the significant role that environmental factors have in shaping our hereditary traits. It implies that our genes can be seen as "stored" information about our ancestors' past environments and influences.