"Humanity should study the foundations of heredity. But this will be possible only when science is liberated from superstition and limitation. Many accumulations have piled up on man. Heredity of one’s personal incarnations, heredity of the clan, heredity of one’s people, supermundane heredity, and also the many influences of accidental encounters, which imprint themselves on the psychic nature and change it. Indeed, scientists of limited mind can observe heredity only within the context of the family; in other words, within the most narrow limitations. They occasionally do observe those inherited traits that may appear even after several generations. But they cannot make the more sensitive observations, because they do not believe in reincarnation or in the Supermundane World. It is impossible to properly observe man within these narrow, ignorant limitations, but one may hope that science will free itself and will achieve true insights... The Thinker reminded, “Liberate science, hasten to remove its fetters.” (929)"