If there be no enemy, no fight; if no fight, no victory; if no victory, no crown. Savanar.
If there be not a religious element in the relations of men, such relations are miserable and doomed to ruin. Carlyle.
If there were no clouds, we should not enjoy 45 the sun. Pr.
If there were no falsehood in the world, there would be no doubt; if no doubt, no inquiry; and if no inquiry, no wisdom, no knowledge, no genius. Landor.
If there were no fools, there would be no knaves. Pr.
If there were only one religion in the world, it would be haughtily and licentiously despotic. Frederick the Great.
If there's a hole in a' your coats, / I rede ye tent it: / A chiel's amang you takin' notes, / And faith he'll prent it. Burns, of Capt. Grose.
If they do these things in the green tree, what shall be done in the dry? Jesus.
If they hear not Moses and the Prophets, neither will they be persuaded though one rose from the dead. Jesus.
If thou art a master, be sometimes blind; if a servant, sometimes deaf. Fuller.