Henry Stanton, Sex — Chapter II: THE TRANSITION FROM CELL TO HUMAN BEING (1922)
“ And many qualities of certain individual ancestors appear quite suddenly late in life. Everything may be inherited, from the most delicate shadings of the disposition, the intelligence and the will power, to the least details of hair, nails and bone structure, etc. And the combination of the qualities of one's ancestors in heredity is so manifold and so unequal that it is extremely difficult to arrive at fixed conclusions regarding it. Hereditary traits and tendencies are developed out of the energies of the original conjugated germ-cells throughout life, up to the very day of death. ”
