Only those who are faultless have the right to pass judgment upon others (implying that no one is faultless and that, therefore, no one has such a right to pass judgment).

Alternative form of let him who is without sin cast the first stone

A command that another person leave, thereby impliedly having the door hit them on the buttocks as they pass through it.

Seek to dispel ill-will before a day’s end, and not to act upon desires for vengeance.

Third-person singular simple present indicative form of let the grass grow round one's feet

Third-person singular simple present indicative form of let the grass grow under one's feet

A symbol in an alphabet. / A written or printed communication, generally longer and more formal than a note.

(transitive) To print, inscribe, or paint letters on something. / (intransitive, US, scholastic) To earn a varsity letter (award).

One who lets, or lets out. / (archaic) One who retards or hinders.

man of letters, a literary man