Don't worry, I know almost exactly what I'm doing.

It is impossible to travel faster than light, and certainly not desirable, as one’s hat keeps blowing off.

Achilles only had an Achilles heel, I have an entire Achilles body.

Most of the time I don't have much fun. The rest of the time I don't have any fun at all.

The food here is terrible, and the portions are too small.

As an artist, you are always striving toward an ultimate achievement but never seem to reach it. You shoot a film, and the result could have always been better. You try again, and fail once more. In some ways I find it enjoyable. You never lose sight of your goal. I don’t do my job to make money or to break box office records, I simply try things out. What would happen if I were to achieve perfection at some point? What would I do then?

You can be with your wife, very happily married, and then you meet some woman and you love her. But you love your wife, too. And you also love that one. Or if she's met some man and she loves the man and she loves you. And then you meet somebody else and now there are three of you. Why only one person?