The Mandelbrot set is the most complex mathematical object known to mankind.

Fractal geometry is not just a chapter of mathematics, but one that helps Everyman to see the same world differently.

Everything is roughness, except for the circles. How many circles are there in nature? Very, very few. The straight lines. Very shapes are very, very smooth. But geometry had laid them aside because they were too complicated.

There is a joke that your hammer will always find nails to hit. I find that perfectly acceptable

Nobody will deny that there is at least some roughness everywhere

I didn't feel comfortable at first with pure mathematics, or as a professor of pure mathematics. I wanted to do a little bit of everything and explore the world.

Asking the right questions is as important as answering them