爱是统一和凝聚的原则，争斗是分离和崩解的力量。

The deepest insights in mathematics often come from the most abstract theories.

"The joy of drawing is in the doing, not in the finished product."

让生活从此变成一首欢乐的诗。

Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution.