Forewarned is forearmed.
For fashion's sake, as dogs gae to market.
For faut o' wise men fools sit on binks.
Forgotten pain, when follows gain.
For gude cheese and cheer mony haunt the house.
Many frequent the house for the sake of what they get to eat.
For my ain pleasure, as the man thrashed his wife.
For puir folk they seldom ring.
Fortune and futurity are no to be guessed at.
Fortune favours the brave.