We know from our clinical experience in the practice of medicine that in diagnosis, prognosis, and treatment, the individual and his background of heredity are just as important, if not more so, as the disease itself.

Acceptance of one's life has nothing to do with resignation; it does not mean running away from the struggle. On the contrary, it means accepting it as it comes, with all the handicaps of heredity, of suffering, of psychological complexes and injustices.

Heredity is what sets the parents of a teenager wondering about each other.

Freedom was conditioned by man's physical body, heredity, and environment.

Of course, I also attribute some of my hearing loss to being in the infantry in World War II. It's probably a combination of heredity and noise exposure.

The man of the future may, and even must, do things impossible in the past and acquire new motor variations not given by heredity.

We do not know, in most cases, how far social failure and success are due to heredity, and how far to environment. But environment is the easier of the two to improve.

Both of these branches of evolutionary science, are, in my opinion, in the closest causal connection; this arises from the reciprocal action of the laws of heredity and adaptation.

Life consists not simply in what heredity and environment do to us but in what we make out of what they do to us.

Heredity is nothing but stored environment.