If friendship is to rob me of my eyes, if it is 20 to darken the day, I will have none of it. Thoreau.
If fun is good, truth is still better, and love most of all. Thackeray.
If happiness ha'e not her seat / And centre in the breast, / We may be wise, or rich, or great, / But never can be blest. Burns.
If heraldry were guided by reason, a plough in a field arable would be the most noble and ancient arms. Cowley.
If Hercules and Lichas play at dice / Which is the better man, the greater throw / May turn by fortune from the weaker hand; / So is Alcides beaten by his page. Mer. of Ven., ii. 1.
If honour calls, where'er she points the 25 way, / The sons of honour follow and obey. Churchill.
If I am anything, which I much doubt, I made myself so merely by labour. Sir Isaac Newton.
If I am master and you are master, who shall drive the asses? Arab. Pr.
If I am not worth the wooing, I surely am not worth the winning. Longfellow.
If I am right, Thy grace impart / Still in the right to stay; / If I am wrong, O teach my heart to find the better way. Pope.