Life is 10% what happens to you and 90% how you react to it.

We must remember the past in order to better face the future.

The quality of an organization's leadership determines the quality of its culture.

We are all cut from the same genetic cloth, and that cloth was woven in Africa.

Art history is always written from somewhere - the question is where you're standing when you write it.

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.

在数学中，你并不理解事物。你只是习惯了它们。