There is no direct and incontrovertible proof of reincarnation, but there is logical evidence for it. Why should there be certain abilities almost without previous training? Why should I be possessed at an early age of the mental abilities of a writer, or someone else of a musician? Heredity alone cannot account for it. But it is perfectly accounted for if we consider them to a subconscious memory. I am unwittingly remembering and using again my own capabilities from a former birth. This is possible only because I am mind. Mind alone can continue itself. Capacities in any field cannot appear out of nothing. The individual who shows them forth is repeating them out of his own deeper memory. There is the evidence of Nature. When I wake up in the morning, I pick up all that I had the day before. I remember my own individuality and use the same literary talents as before. Otherwise, I could never write again, or someone else could never sing. The basis of this reminiscence is not a physical occurrence, but a mental one.
-- Notebooks Category 9: From Birth to Rebirth > Chapter 2: Rebirth and Reincarnation > # 89
-- Perspectives > Chapter 9: From Birth to Rebirth > # 25