August Turak has written an insightful post entitled Can Creativity Be Taught. I have also written about unlearning and the creativity process before but I'd like to just highlight a few key points from his article:
1. "Asking radically different questions in a non-linear way is the key to creativity." (If you're looking for some new questions you might try these, and if you're looking to think in a non-linear way you might recall the lesson of the lily pad).
2. "Becoming creative is an unlearning rather than a learning process … because it upends existing assumptions." (This is why "If something goes without saying, you should question it.)
3. "Creativity is highly correlated with self-knowledge but it is impossible to overcome biases if we don't know they are there."
4. "You should seek a mentor that infuriates your ego rather than soothes it."