Undefined on random quote generator?

/******************************************
Treehouse FSJS Techdegree:
project 1 - A Random Quote Generator
******************************************/

// For assistance: 
  // Check the "Project Resources" section of the project instructions
  // Reach out in your Slack community - https://treehouse-fsjs-102.slack.com/app_redirect?channel=chit-chat

/*** 
 * `quotes` array 
***/
const quotes = [
  {source: 'John Lennon', quote: "You may say Im a dreamer, but I'm not the only one. I hope someday you'll join us. And the world will live as one."},

  {source:'James Cameron', quote: "If you set your goals ridiculously high and it's a failure, you will fail above everyone else's success."},

  {source: 'Steve Jobs', quote: "Your time is limited, so don't waste it living someone else's life. Don't be trapped by dogma - which is living with the results of other people's thinking."},

  {source:'Malcolm X', quote:"You don't have a peaceful revolution. You don't have a turn-the-cheek revolution. There's no such thing as a nonviolent revolution.", year:'1963', citation:"Message To the Grassroots (Speech)"},

  {source: 'Ralph Wldo Emerson', quote:"All I have seen teaches me to trust the Creator for all I have not seen."}
  ];


/***
 * `getRandomQuote` function
***/

function getRandomQuote() {
  // 1. Create a variable that generates a random number between zero and the last index in the `quotes` array
  let randomNumber = Math.floor(Math.random() * quotes.length );


 let randoQuote = quotes[randomNumber]; 

  return randoQuote;

}
getRandomQuote() 
/***
 * `printQuote` function
***/

function printQuote(){

  let newQuote = getRandomQuote();


  let benji = `
      <p class="quote"> ${quotes.quote}</p>
      <p class="source">${quotes.source} `;



      if ("year" in newQuote) {
        benji += `<span class="year"> ${quotes.year} </span>`;
        }

        if ("citation" in newQuote) {
        benji += `<span class="citation"> ${quotes.citation} </span>`;
        }

    benji += '</p>';
      document.getElementById('quote-box').innerHTML = benji;







  }
  printQuote();
/***
 * click event listener for the print quote button
 * DO NOT CHANGE THE CODE BELOW!!
***/

document.getElementById('load-quote').addEventListener("click", printQuote, false);