diamond cuts diamond.
do as the romans do.
do as you would be done by.
doing is better than saying.
do it now.
do nothing by halves.
don't claim to know what you don't know.
don't have too many irons in the fire.
don't make a mountain out of a molehill.
don't put off till tomorrow what should be done today.
don't put the cart before the horse.
don't trouble trouble until trouble troubles you.
don't try to teach your grandmother to suck eggs.
do well and have well.
each bird love to hear himself sing.
early to bed and early to rise makes a man healthy, wealthy and wise.
confidence in yourself is the first step on the road to success.
constant dripping wears away a stone.
content is better than riches.
count one's chickens before they are hatched.
courtesy on one side only lasts not long.
creep before you walk.
cry for the moon.
custom is a second nature.
custom makes all things easy.