As to the instrument, the catalogue is far from complete, telling us nothing at all about where the recording pen left its trace. (Remember that poisoned cat!)
The idea of the continuum seems simple to us. We have somehow lost sight of the difficulties it implies ... We are told such a number as the square root of 2 worried Pythagoras and his school almost to exhaustion. Being used to such queer numbers from early childhood, we must be careful not to form a low idea of the mathematical intuition of these ancient sages; their worry was highly credible.
I know not whence I came, nor whither I go, nor who I am.
[On quantum mechanics ]
I don't like it, and I'm sorry I ever had anything to do with it.
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