1. The most regretful thing in life is to give up easily what should not be given up and stubbornly persist in what should not be persisted.

2. Since there are black spots on the sun, it is even more impossible for "things in the world" to be without flaws.

3. The reason why this world is beautiful lies in its flaws, opportunities for hope, and fields of imagination.

4. People rarely do what they believe is right. They do what is more convenient and then regret it.

5. What I often regret are the things I didn’t do and the options I didn’t choose. We spend most of our time fearing failure, fear of rejection. But regret is what we should fear most. Failure is an answer. No is also an answer. But regret is the eternal question you never get the answer to.