Every quarry has a story written in layers of stone and generations of workers.
如果两分钟后觉得无聊,就试四分钟。如果仍然无聊,就八分钟。然后十六分钟。然后三十二分钟。最终你会发现它一点也不无聊。
Mathematics is the foundation upon which the edifice of science is built.
Life is a series of endless repetitions, each more meaningless than the last.