“The outer is easier, and the outer is objective. For example, one man, Thomas Alva Edison, discovers electricity and the whole of humanity uses it; there is no need for everyone to discover it again and again. Inner growth is a totally different phenomenon. A Gautama Buddha may become enlightened, but that does not mean that everybody else becomes enlightened. Each individual has to find the truth for him or herself.”

Osho, The Book of Understanding (page 96)