Heredity Quotes

“Heredity is an omnibus in which all our ancestors ride and every now and then one of them puts his head out and embarrasses us.”

“Many races as well as cultural influences of men of all kinds have mixed into any man. To select, for approbation the peculiar elements that come from some supposedly Jewish heredity is to open the door to all kinds of nonsense on racial theory.”

“I may finally call attention to the probability that the association of paternal and maternal chromosomes in pairs and their subsequent separation during the reducing division as indicated above may constitute the physical basis of the Mendelian law of heredity.”

“Of the contributions made during the essayist period three call for notice: Weismann deserves mention for his useful work in asking for the proof that "acquired characters" or, to speak more precisely, parental experience can really be transmitted to the offspring. The ocurrence of progressive adaptation by transmission of effects of use had seemed so natural to Darwin and his contemporaries that no proof of the physiological reality of the henomenon was thought necessary. Weismann's challenge revealed the utter inadequacy of the evidence on which the beliefs were based. They are doubtless isolated observations which may be interpreted as favouring the belief in these transmissions, but such meagre indications as exist are by general consent admitted to be too slight to be of much assistance in the attempt to understand how the more complex adaptive mechanisms arose.”

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

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

“No man was to be eulogized for what he did; or censured for what he did or did not do. All of us are the children of conditions, of circumstances, of environment, of education, of acquired habits and of heredity; moulding men as they are and will for ever be.”

“Imagine a factory staffed by Alphas—that is to say by separate and unrelated individuals of good heredity and conditioned so as to be capable (within limits) of making a free choice and assuming responsibilities. Imagine it!”

“Up to a point a man's life is shaped by environment heredity and movements and changes in the world about him then there comes a time when it lies within his grasp to shape the clay of his life into the sort of thing he wishes to be. ... Everyone has it within his power to say this I am today that I shall be tomorrow.”