A few years ago, I started to gather mental tools for a good life. I wanted to gain access to the wealth of half-forgotten thought models from classical antiquity as well as to the recent ideas that have emerged from psychological research. If we want, we can describe this book as "classical life philosophy for the 21st century." I therefore use these tools daily to overcome the small and big challenges of my life.

And given that my life has improved in almost every way (I have less hair today and more wrinkles on my face, but they have not negatively affected me), I recommend them to you with a clear conscience: 52 thinking tools that cannot guarantee you a good life, but can increase the chances of you living one.

"Read three pages and you have already learned something." Franz Himpsel, Süddeutsche Zeitung

"Döbell's books will change the way you think." Dan Goldstein, professor at London Business School

"A firework of knowledge! If you don't want to stumble all the time over the traps of thought, you must read this book." Iris Bohnet, professor at Harvard

"Rolf Dobelli is one of the brightest thinkers in Europe." Matt Ridley

"Rolf Dobelli gathers ideas from a wide variety of cognitive fields in the manner of a virtuoso. He combines science and art with spirit, grace, and precision." Joshua Greene, professor of psychology at Harvard University