Sholay had many inpsirational dialogs which were known to many people by heart. Jo dar Gaya Woh mar Gaya is indeed a very popular one. Another one was Kitne admi the or Itna sanata kyon ha bhai. these can be used by different persons to mean different things.
I don't know ifI you remember . During those days, the dialogues of the movie were recorded in a Long playing Recrd. A record coming in the form of LP itself was a record. Kudos to Salim-Javed, the dialogue writers.
