Joy sparks the urge to play, interest sparks the urge to explore, contentment sparks the urge to savor and integrate, and love sparks a recurring cycle of each of these urges within safe, close relationships.

Art is not what you see, but what you make others see.

形容人心难以捉摸，民众的行为像烟一样飘忽不定。

我们都正走向天堂之路，也通往地狱之门。

The next generation of forest leaders must be as comfortable with biodiversity metrics as they are with profit margins.

The most important thing in mathematics is to have a good intuition.