Jamal olmadan yaşamak düşünülemez.
- Living without Jamal is unthinkable.
Üretken düşünce ve yaratıcılık; hayal gücü olmadan düşünülemez.
- Productive thinking and creativity are unthinkable without imagination.
Nothing is unthinkable, nothing impossible to the balanced person, provided it comes out of the needs of life and is dedicated to life's further development - Lewis Mumford.
In An Experiment with an Air-Pump, characters repeatedly assert that once you've thought something, you can't unthink it, can you?.