The present is the past rolled up for action, and the past is the present unrolled for understanding.
Every mathematical problem has a solution; it's just a matter of finding the right perspective.
教育系统的墙必须倒塌。教育不应是特权，所以有钱人的孩子才能学习。
The artist must be a child of the earth.
The artist’s duty is to express what others cannot.
The concept of legal validity is crucial for understanding the nature of law.
The world is full of obvious things which nobody by any chance ever observes.