一切东西的真实价格,即对于想要获得它的人来说真正付出的代价,是获得它所付出的辛劳和麻烦。
Mathematics is the art of giving the same name to different things.
The most significant threat to liberal democracy today is not from rival ideologies like communism or fascism, but from within—from the rise of populism and the erosion of democratic norms.
The simplest sentences often hold the most profound truths.