★Offence is the best defence.
★Of nothing comes nothing.
★Old love will not be forgotten.
★Omelets are not made without breaking eggs.
★One cannot make a silk purse out of a sow’s ear.
★One cannot put back the clock.
★One crowded hour of glorious life is worth an age without a name.
★One half of the world does not know how the other half lives.
★Overdone is worse than undone.
★Pain is forgotten where gain follows.
★Penny wise and pound foolish.
★Proverbs are the wisdom of the ages.
★Score twice before you cut once.
★All good things come to an end.
★All rivers run into sea.