“The question: should I philosophize for myself? must, I think, be answered in the same way as the question: should I shave myself? If someone were to ask me this, I would answer: if you can do it properly, it is an excellent thing. I always think that though we try to teach ourselves the latter, we do not make our first attempt on the throat. Act as the wisest before you have acted, and do not begin your philosophical exercises where an error can deliver you into the hands of the executioner.”
Lichtenberg, Scrapbooks, [142]