Life is simple. Grow up, make a living, if you feel the need, find a partner in life, make a better living, if you feel like walking alone, that's fine too, if you're adventurous, have a child, and if you're game enough, have children, make an even better living, teach your children to grow up and be independent, learn to let them go, then let them go, grow old and die, presumably life ends then.
Life is simple, when it concerns the "what to do".
When it comes to the "how to do", or "how much", "how good" - life is a bitch.
Life could be a bitch, it's all down to perspective. Shift your angle, the bitch could be a challenge, shift it a little bit more, it could even be interesting. And if you are wise about it, life could be simple.
Life is simple.