If them art rich, thou art poor; / For, like an ass whose back with ingots bows, / Thou bear'st thy heavy riches but a journey, / And death unloads thee. Meas. for Meas., iii. 1.
If thou art wise, thou knowest thine own 5 ignorance; and thou art ignorant, if thou knowest not thyself. Luther.
If thou be a severe, sour-complexioned man, then here I disallow thee to be a competent judge. Isaac Walton.
If thou be master-gunner, spend not all / That thou canst speak at once, but husband it. George Herbert.
If thou bear the cross cheerfully, it will bear thee. Thomas à Kempis.
If thou canst let others alone in their matters, they likewise will not hinder thee in thine. Thomas à Kempis.
If thou cast away one cross, without doubt 10 thou shalt find another, and that perhaps more heavy. Thomas à Kempis.
If thou deniest to a laborious man and a deserving, thou killest a bee; if thou givest to other than such, thou preservest a drone. Quarles.
If thou doest well, shalt thou not be accepted? Bible.
If thou faint in the day of adversity, thy strength is small. Bible.