如果你还在想着昨天，你就不会有更好的明天。

"I don't think of myself as a photorealist. I think of myself as a realist painter."

Sorrow is hushed into peace in my heart like the evening among the silent trees.

The advancement of mathematics is due to those who are driven not by the desire for application but by the joy of discovery.

Every new day is another chance to change your life.

The essence of mathematics is not to make simple things complicated, but to make complicated things simple.

要理解一片森林，你必须倾听它——不仅用耳朵，还要用心。