The boundary between physics and mathematics is not as clear-cut as we might think.

The founders of a new colony, whatever Utopia of human virtue and happiness they might originally project, have invariably recognized it among their earliest practical necessities to allot a portion of the virgin soil as a cemetery, and another portion as the site of a prison.

我从不满足于任何事，我是个完美主义者，这是我的一部分。