You can obsess about serving your customers/audience/clients, or you can obsess about beating the competition. Both work, but of the two, obsessing about your customers will take you further.
实验的语言比任何推理都更具权威性:事实可以摧毁我们的推理,但反之则不然。
当我们谈论一个词的“意义”时,首先我们在谈论一种特定的行为。