- The advantages of disadvantages (and disadvantages of advantages)
- Inverted U-curve:
- first stage (linear rising) - doing/having more make things better
- second stage - diminshing returns
- third stage (flat) - doing more doesn't make much difference
- fourth stage (falling) - more resources are counterproductive
- Some difficulties are desirable - emerge stronger
- There are limits to what evil and misfortune can accomplish