Random Text like Minecraft

First, sorry for my bad English.

I want to make a random text appear on the screen, just like Minecraft, how can I do this?137140-screenshot-3.png

Try this

// At the top of the file

using System.Collections.Generic;
using UnityEngine;

// In the class

public List<string> Messages = new List<string>();
public Text mytext;

private void Start()
    Messages.Add("message 1");
    Messages.Add("message 2");
    Invoke ("ChangeText",1.0f);

public void ChangeText()
    mytext.text = Messages[Random.Range(0,Messages.Count)];

This will the text after 1 second.