Those who staying with the wrong reward,(eg. stay in comfort zone, etc.), long enough will get problem.

For the most part we humans live with the false impression of security and a feeling of being at home in a seemingly familiar and trustworthily physical and human environment. But when the expected course of everyday life is interrupted, we realize that we are like shipwrecked people trying to keep their balance on a miserable plank in the open sea, having forgotten where they came from and not knowing whether they are drifting. But once we fully accept this, life becomes easier and there is no longer any disappointment.

Not all things worth counting are countable and not all things that count are worth counting.

Even if you have to go through hell - go without hesitation.

I have little patience with scientists who take a board of wood, look for its thinnest part, and drill a great number of holes where drilling is easy.

To me it is enough to wonder at the secrets

Play is the highest from of research.