Short term pleasure, long term pain

That's the way of the world. It's all about fleeting moments of happiness. But if you really genuinely are convinced that life ends with death, it makes perfect sense.

If you're life could be extinguished at any moment, then you may as well seek out instant pleasure and disregard the long-term consequences. From this perspective, there is no real moral law. Nothing you do, whether good or bad, will be remembered in a few generations. And all your actions can be justified by one statement: 'survival of the fittest'.

So why don't most people live like this? Why aren't more people more evil than they already are? Either we're lazy, far too worried about what other people think, or we have this built-in sense of God looming over our heads. Probably a mix of all three.