When we measure forest success only in board feet, we miss the forest for the trees.
工具变量的美妙之处在于它们让我们以新的视角看世界。
The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.
A novel is a conversation between the writer and the reader, across time.
The greatest tragedy in mankind's entire history may be the hijacking of morality by religion.
I was looking for the key for years, but the door was always open.
The future of energy is diverse—no single source will dominate.
I'm very confident in my own skin.