理论地理学是科学的女王，因为只有她试图理解整个地球。
There are no shadows in the dark. Shadows are servants of the light, children of fire.
"Writing is a way of discovering what you didn’t know you knew."
“如果你活到100岁，那么我希望活到100岁减去1天，这样我的生活中就不会失去你啦。”
The ratio of positive to negative emotions that predicts flourishing is about 3 to 1. Above that ratio, people tend to flourish; below it, they tend to languish.
The personal is historical, and the historical is personal.
The past is not a foreign land but our ancestral home.