Be ashamed to catch yourself idle.
Everybody's human-everybody makes mistakes. If you laugh it off and keep going and try to give it your best the next time around, people respect that.
Sarcasm is the lowest form of humor but the highest form of flattery.
Never spare the parson's wine nor the baker's pudding
Reckless haste makes poor speed.
The game of Chess is not merely an idle amusement; several very valuable qualities of the mind are to be acquired and strengthened by it, so as to become habits ready on all occasions, for life is a kind of chess.