truths and great truths

i read a quote recently that stated that 'there are simple truths and there are great truths. the opposite of a simple truth is just false, but the opposite of a great truth is also true.' this is a rather interesting quote i think, because what it implies is that say.... one person believes in god; this is true, but someone else doesnt; this is also true. now i strongly believe in god so i say thats just false, but that's an opinion and i can see where people can be right in saying this. but what would be other great truths?