Lately, it seems that everyone has nothing to learn. Everyone knows best.
So I picked up this fairy tale: to remember us that we always could benefit from others skills and experiences.

THE FOX AND THE CAT (Brothers Grimm)

It happened that the cat met the fox in a forest, and as she thought to herself: ‘He is clever and full of experience, and much esteemed in the world,’ she spoke to him in a friendly way. ‘Good day, dear Mr Fox, how are you? How is all with you? How are you getting on in these hard times?’ The fox, full of all kinds of arrogance, looked at the cat from head to foot, and for a long time did not know whether he would give any answer or not. At last he said: ‘[...] >> Read it entirely on Project Gutenberg