The highest manifestation of life consists in this: that a being governs its own actions.A thing which is always subject to the direction of another is somewhat of a dead thing.

The rat in the maze is not just learning a series of turns, but is building up a cognitive map of the whole situation.

"The soul of a person is revealed in their stories."

Lightness is not just physical, but also psychological.

学习速度是当今世界唯一可持续的竞争优势。

在数学中，提出问题的艺术必须比解决问题更有价值。