“The basic stimulus to the intelligence is doubt, a feeling that the meaning of an experience is not self-evident.”

“Without art, we should have no notion of the sacred; without science, we should always worship false gods.”

“Autobiography begins with a sense of being alone. It is an orphan form.”

“Mistakes? That's why they put erasers on pencils.”

“The features of character are carved out of adversity.”

“Just as in the body, eye and ear develop as organs of perception, as senses for bodily processes, so does a man develop in himself soul and spiritual organs of perception through which the soul and...”

“The most perfidious way of harming a cause consists of defending it deliberately with faulty arguments.”

“An ordinary mirror is silvered at the back but the window of the night train has darkness behind the glass. My face and the faces of other travellers were now mirrored on this darkness in a success...”

“My sense of self has expanded and contracted like a schizophrenic accordion. I have questioned everything, and I have felt nothing. I have told the universe to f**k off, and I have fallen down weep...”