For ever is not a category that can establish itself in this world of time. Carlyle.
For every dawn that breaks brings a new world, / And every budding bosom a new life. Lewis Morris.
For every grain of wit there is a grain of folly. Emerson.
For every ten jokes thou hast got an hundred enemies. Sterne.
For everything you have missed, you have 35 gained something else; and for everything you gain, you lose something. Emerson.
For fate has wove the thread of life with pain, / And twins e'en from the birth are misery and man. Pope.
For faith, and peace, and mighty love / That from the Godhead flow, / Show'd them the life of heaven above / Springs from the earth below. Emerson.
For fault o' wise men fools sit on binks (seats, benches). Sc. Pr.
For fools rush in where angels fear to tread. Pope.
For forms of government let fools contest; / 40 Whate'er is best administered is best. Pope.