The most regretful thing you can ever do is live a mediocre life

Live a life that hasn't been lived yet!!

I've had to live with this all my life. It's something I deeply regret.

Get a bicycle. You will not regret it. If you live.

For much of my life, I existed in a condition of regret, a regret that was contemporaneous with experience, and which sometimes preceded experience.

Don't try to understand life. Live it! Don't try to understand love. Move into love. Then you will know - and all that knowing will come out of your experiencing. The more you know, the more you know that much remains to be known.