Fight for the right cause and let it consume you fully. That is the only way of living life. Fight for the right one and devote yourself totally to him. That is the only way of living and fighting. Give yourself up so totally that you cannot now be blamed with having reserved anything for your personal self.
Don’t cut corners. Don’t hold back. Don’t compartmentalize between personal life and professional life. Devote the last ounce of yourself, your energy, your flesh, everything. That is the only way to ensure that you never are defeated.