Today's Subhashita.

अकर्तव्यं न कर्तव्यं प्राणैः कण्ठगतैरपि |
कर्तव्यमेव कर्तव्यं प्राणैः  कण्ठगतैरपि  ||

अर्थ -      जो कार्य निषिद्ध या न करने के योग्य हों उन्हें प्राण कंठगत होने पर भी  (मृत्यु का आसन्न संकट
होने पर भी ) नहीं करना चाहिये |    इस के विपरीत जो कार्य करना अपना कर्तव्य हो उसे  अपने अपने प्राणों की परवाह्  न करते हुए भी अवश्य करना चाहिये |

Akartavyam na kartavyam praanaih kanthagatairapi,
Kartavyameva kartavyam praanaih kanthagatairapi.

Akartavyam = an improper or criminal act, any thing that ought not to be done,   Na = not
Kartavyam =  done as a duty.    Praanaih = breathing.      Kanthagatairapi = kanthagataih + api.
Kanthagata =  reaching the throat.    Praana kanthagat =  about to breath his last breath i,e,. about to die.         Api = even      Kartavyameva  = kartavyam +aiva.     Aiva = really,  already.
(The prefix 'a' before a word gives just the opposite meaning to that word, just like the prefix 'in' or 'un' in English .   So 'akartavya' is just the opposite of 'kartavta' .

i.e.       One should not do improper or criminal acts  even if he faces a threat to his life. On the other hand one should perform his duty even at the cost of his life.