It seems to me a fundamental dishonesty, and a fundamental treachery to intellectual integrity to hold a belief because you think it's useful and not because you think it's true.
Bertrand RussellI feel as if one would only discover on one's death-bed what one ought to have lived for, and realise too late that one's life has been wasted. Any passionate and courageous life seems good in itself, yet one feels that some element of delusion is involved in giving so much passion to any humanly attainable object. And so irony creeps into the very springs of one's being.
Bertrand RussellWhen a man tells you that he knows the exact truth about anything you are safe in inferring that he is an inexact man.
Bertrand Russell