Fred Reinfeld quotes:

One interesting indication of Capablanca's greatness is that to non-chess players his name was better known than the names of all other chess masters together! This was due partly to his engaging personality and distinguished appearance: he was one of those exceptional people who at once stand out in a crowd.

But alas! Like many another consummation devoutly to be wished, the actual performance was a disappointing one.

Faulty execution of a winning combination has lost many a game on the very brink of victory. In such cases a player sees the winning idea, plays the winning sacrifice and then inverts the order of his fellow-up moves or misses the really clinching point of his combination.

The Pin is mightier than the sword

Short of actual blunders, lack of faith in one's position is the chief cause of defeat. To be sure, it is easy to recommend faith and not so easy to practise it.