John McCaintwo-time presidential candidate, war hero, and senatordied in August 2018.Since his death, President Donald Trump has continued to mock and deride McCain, drawing the condemnation of fellow Republicans.Throughout his life, McCain had many inspirational quotes on what it means to be American, how to be truly happy, and why it's important to stand up for what you believe in. Here are 10 of his best.Sen. John McCain, who served in the Senate since 1987, died in August at the age of 81.Since then, President Donald Trump, who feuded with McCain in life, has continued to disparage the war hero in death. The president is still upset that the Arizona senator turned over a largely uncorroborated dossier full of explosive allegations about Trump and Russia to the FBI in December 2016.Read more:John McCain describes how he received the Steele dossier that contains the most salacious allegations about Trump and Russia, and why he gave it to the FBIHere are 10 of the Arizona senator and former Republican presidential candidate's best quotes on courage, happiness, and character.SEE ALSO:The incredible life of John McCain in photosDON'T MISS:Former presidents, congressional leaders, and the military commend John McCain's storied life and serviceOn fighting for a cause:"Nothing in life is more liberating than to fight for a cause larger than yourself, something that encompasses you but is not defined by your existence alone."On the nature of Americans:"Americans Never Quit. We never surrender. We never hide from history. We Make History."On glory:"Glory belongs to the act of being constant to something greater than yourself, to a cause, to your principles, to the people on whom you rely and who rely on you."See the rest of the story at Business Insider Click here to read full news..