American author Mark Twain, while viewed as liberal and non-judgmental, did at times demonstrate both these characteristics. While his reasons for detesting the Christian faith are unclear, they seem to have been profound and deep-rooted. Having lambasted the founder of Christian Science, Mary Baker Eddy, in a later quote he referred to the Book of Mormon as "chloroform in print."

What I used to say to people, when I was much more engagé myself, is that you can't be apolitical. It will come and get you. It's not that you shouldn't be neutral. It's that you won't be able to stay neutral.

Trust is not the same as faith. A friend is someone you trust. Putting faith in anyone is a mistake.

Literature, not scripture, sustains the mind and - since there is no other metaphor - also the soul.

Part of the function of memory is to forget; the omni-retentive mind will break down and produce at best an idiot savant who can recite a telephone book, and at worst a person to whom every grudge and slight is as yesterday's.

Ruthless and arrogant though power can appear, it is only ever held by mere mammals who excrete and yearn, and who suffer from insomnia and insecurity. These mammals are also necessarily vain in the ­extreme, and often wish to be liked almost as much as they desire to be feared.

There are two clocks ticking in Iran. One is the democracy movement clock which is ticking now faster than it was but it's got a lot of catching up to do. And then there's the clock that's ticking towards a nuclear weaponry.