“ A book you finish reading is not the same book it was before you read it. 你读完的一本书和你读之前的那本书不一样。 David Mitchell 大卫·米切尔
“ For this, indeed, is the true source of our ignorance-the fact that our knowledge can only be finite, while our ignorance must necessarily be infinite. 因为这确实是我们无知的真正根源——我们的知识只能是有限的,而我们的无知必然是无限的。 Karl Popper 波普尔