Top 8 Quotes & Sayings by Jerome Lejeune

Explore popular quotes and sayings by Jerome Lejeune.

Last updated on April 15, 2025.

Jérôme Jean Louis Marie Lejeune was a French pediatrician and geneticist, best known for discovering the link of diseases to chromosome abnormalities, most especially the link between Down Syndrome and trisomy-21 and cri du chat syndrome, amongst several others, and for his subsequent strong opposition to, in his opinion, the improper and immoral use of amniocentesis prenatal testing for eugenic purposes through selective and elective abortion. He is venerated in the Catholic Church, having been declared Venerable by Pope Francis on 21 January 2021.

June 13, 1926 - April 3, 1994

Source: Wikipedia

I look forward to the day when a mongolian idiot, treated biochemically, becomes a successful geneticist.

Jerome Lejeune

After fertilization has taken place a new human being has come into being.

Jerome Lejeune

We have no acceptable theory of evolution at the present time. There is none; and I cannot accept the theory that I teach to my students each year. Let me explain. I teach the synthetic theory known as the neo-Darwinian one, for one reason only; not because it's good, we know that it is bad, but because there isn't any other. Whilst waiting to find something better you are taught something which is known to be inexact.

Jerome Lejeune

To accept the fact that, after fertilization has taken place, a new human has come into being is no longer a matter of taste or opinion. The human nature of the human being from conception to old age is not a metaphysical conception. It is plain experimental evidence.

Jerome Lejeune

[It] is no longer a matter of taste or opinion...it is plain experimental evidence.

Jerome Lejeune

To dissociate the child from love is, for our species, a methodological error: contraception, which is to make love without making a child; artificial (in vitro) fertilization, which is to make a child without making love; abortion, which is to unmake the child; and pornography, which is to unmake love: all these, to varying degrees, are incompatible with natural law.

Jerome Lejeune