Opposite Advice - Which one is right?

• A bird in the hand is worth two in the bush. :: A man's reach should exceed his grasp.
• A good beginning makes a good ending. :: It's not over till it's over.
• Ask no questions and hear no lies. :: Ask and you shall receive.
• Birds of a feather flock together.  :: Opposites attract.
• Clothes make the man. :: Never judge a book by its cover.
• Dig the well before you are thirsty. :: Don't cross the bridge till you come to it.
• Don't change horses in midstream. :: Variety is the spice of life.
• Don't cross the bridge till you come to it. :: Forewarned is forearmed.
• Doubt is the beginning, not the end, of wisdom. :: Faith will move mountains.
• He who hesitates is lost. :: Look before you leap.
• If at first you don't succeed, try try again. :: Don't beat a dead horse.
• If you lie down with auditors, you'll get up with recommendations. :: If you can't beat'em join'em.
• Practice makes perfect. :: All work and no play make Jack a dull boy.
• Silence is golden. :: The squeaky wheel gets the grease.
• The best things come in small packages. :: The bigger, the better.
• The pen is mightier than the sword.  :: Actions speak louder than words.
• There's safety in numbers. :: Better be alone than in bad company.
• Too many cooks spoil the broth. :: Many hands make light work.
• Too many cooks spoil the broth. :: Two heads are better than one.
• You're never too old to learn. :: You can't teach old dog new tricks.