Clear sky
It reminds me of a clear mind when we dissipate the clouds of judgement.

Especially, when you judge your learning based on your failings. Failings are part of the path, not part of the problem.
About Miguel Panao
I am a Professor at the University of Coimbra in Mechanical Engineering. I am also author of books in the fields of environmental ethics and Science and Religion. From the several research projects, this site is personal and dedicated to the search for the best approaches, tools, techniques to improve scientific productivity.