How to pass Strings from one activity to another using spinner (Android Studio)

Question

I am a novice android developer trying to program my first application. I am almost done, but for the last step of the app, I want to take the selection the user made on the previous page from a spinner.

After the user chooses a string from the spinner, they press a button at the button to move to the next page. I retrieved the string from the spinner using getItemAtPosition, but I don't know how to pass that information to the button method so that I can use intent to pass it to the next activity. I know I could get rid of the button entirely and go to the next activity once the user has selected a string from the spinner, but I don't really want to do that. Here is the code below:

@Override
public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
    String text = adapterView.getItemAtPosition(i).toString();
}

@Override
public void onNothingSelected(AdapterView<?> adapterView) {

}

public void quoteButton(View view){
    Intent intent = new Intent(this, DisplayQuoteActivity.class);
    startActivity(intent);
}

text is the string that the user selected and quoteButton is the button to jump to the next activity but I do not know how to transfer the string text from the onItemSelected method to the quoteButton method.

Thanks for the help.