A dictionary of Proverbs (Oxford Paperback Reference)

fish-guts see KEEP your own fish-guts for your own sea-maws.
fit see if the CAP fits, wear it; ONE size does not fit all; if the SHOE fits, wear it.
fix see if it ain’t BROKE, don’t fix it.
flag see TRADE follows the flag.
flattery see IMITATION is the sincerest form of flattery.
flea see BIG fleas have little fleas upon their backs to bite them; if you LIE down with dogs, you will get up with fleas; NOTHING should be done in haste but gripping a flea.
flesh see what’s BRED in the bone will come out in the flesh.
flew see a BIRD never flew on one wing.
flight see BLESSINGS brighten as they take their flight.
float see if you SIT by the river for long enough, you will see the body of your enemy float by.
flock see BIRDS of a feather flock together.
flower see APRIL showers bring forth May flowers.
fly see (noun) EAGLES don’t catch flies; HONEY catches more flies than vinegar; a SHUT mouth catches no flies; (verb) TIME flies; also FLEW.
flying see it is good to make a BRIDGE of gold to a flying enemy.
folk see DIFFERENT strokes for different folks; there’s NOWT so queer as folk; YOUNG folks think old folks to be fools, but old folks know young folks to be fools.
follow see TRADE follows the flag.
He that FOLLOWS freits, freits will follow him
A Scottish proverb. He that looks for portents of the future will find himself dogged by them. Freits are omens.

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  с 1700 in J. Pinkerton Scottish Tragic Ballads (1781) I. 47 Wha luik to freits, my master deir, Freits will ay follow them. 1721 J. KELLY Scottish Proverbs 128 He that follows Freets, Freets will follow him. He that notices superstitious Observations (such as spilling of Salt).. it will fall to him accordingly. 1804 M. PARK in Lockhart Life of Scott
  
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  1837) II. i. He answered, smiling, ’Freits (omens) follow those who look to them.’.. Scott never saw him again. 1914 Times Literary Supplement 9 Apr. 178 The Kings of Scots have always been beset by omens, and.. to him who follows freits, freits follow. ■ future; omens