Every sentence I utter must be understood not as an affirmation, but as a question.
Truth is something that we can attempt to doubt, and then perhaps, after much exertion, discover that part of the doubt is not justified.
No paradox, no progress.
I go into the Upanishads to ask questions.
If anybody says he can think about quantum physics without getting giddy, that only shows he has not understood the first thing about them.
One thought spectra are marvellous, but it is not possible to make progress there. Just as if you have the wing of a butterfly then certainly it is very regular with the colors and so on, but nobody thought one could get the basis of biology from the coloring of the wing of a butterfly.