The world is full of obvious things which nobody by any chance ever observes.

The beauty of mathematics lies not only in its ability to describe the world but also in its power to reveal the hidden structures that govern it.

The function of art is to make the invisible visible.

The desire for recognition, the thymotic part of the soul, is the most fundamentally human part of the human being.

Leadership means making tough decisions today to ensure a better tomorrow.

Man muss die Dinge so nehmen, wie sie kommen, aber man sollte dafür sorgen, dass sie so kommen, wie man sie nehmen möchte.

不要把行动与进步混为一谈。