Our wretched species is so made that those who walk on the well-trodden path always throw stones at those who are showing a new road. – Voltaire

The only man I know who behaves sensibly is my tailor; he takes my measurements anew each time he sees me. The rest go on with their old measurements and expect me to fit them. – George Bernard Shaw

The fatal tendency of mankind to leave off thinking about a thing when it is no longer doubtful, is the cause of half their errors. – John Stuart Mill

The number of those who undergo the fatigue of judging for themselves is very small indeed. – Richard Brinsley Sheridan, The Critic, 1799