Intellectual activity is perhaps the greatest pleasure of life; chess is one of the forms of intellectual activity.
Siegbert TarraschI had a toothache during the first game. In the second game I had a headache. In the third game it was an attack of rheumatism. In the fourth game, I wasn't feeling well. And in the fifth game? Well, must one have to win every game?
Siegbert TarraschOne of these modest little moves may be more embarrassing to your opponent than the biggest threat
Siegbert Tarrasch