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We are all alone in the universe, and the only thing that can bridge the gap between us is love.

The elegance of a theory is not just in its mathematical formulation, but in its ability to connect disparate phenomena under a unified framework.

As in geometry the most natural way of beginning is from a mathematical point, so is the same method in observations and natural history the most genuine, simple, and instructive.

"The city’s poor are like the roots of a tree; unseen, but essential to its life."

世界是生者的地方，死者在其中沒有位置。