The questions he asked himself ... deal with space and time, which are philosophical concepts,” said Schulmann, who is at work on a biography of Einstein.

他所自问的问题……涉及空间与时间，这些都是哲学概念。

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It is the city that inspires the latest book from Peter Smith, a London-based author and committed urbanite best-known for a well-received biography of Albert Einstein published in 2003.

ECONOMIST: Welcome to a world of high living