Lecture VII

But it is not only in history that proof can be found, if you go to work in the right way you can find it also in natural science and in allied realms. You have only to look in the right way to find that new ideas appear everywhere sporadically at the present day, and that old ideas become useless and disappear. Our thinkers and investigators seem to work with ideas that have become ineffectual, because in the widest sense they are incapable as yet of accepting and making use of other lines of thought, such as those of reincarnation and karma, and all that theosophy has to give. You can search the modern literature of the various departments of science, there you will find what is so painful for those who know how fact after fact appears in scientific life and nowhere are ideas capable of grasping them. There is one such idea that plays an important part in science to-day—the idea of heredity. (These things can only be hinted at here.) The idea of heredity as it is put forward in various departments of science and even in popular literatures to-day is simply untenable.