Human cognitive ability is closely related to human cognitive process, and can be said to be a product of human cognitive process. ——Zhang Yuneng

Fractal geometry not only shows the beauty of mathematics, but also reveals the essence of the world, and also changes the way people understand the mysteries of nature; it can be said that fractal geometry is the geometry that truly describes nature. Research has also greatly expanded the realm of human cognition. ——Zhou Haizhong

A person who really knows himself cannot be immodest. Humility makes a person's heart shrink, like a pebble. Although it is small, it is extremely strong. Only by being strong can you be honest. ——Lao She

Dissatisfaction with oneself is one of the fundamental characteristics of any truly talented person. ——Chekhov

It is important for people to know themselves. Know yourself----this sentence is engraved on the pillars of the Greek temple-(very famous)