"To be a spy is to live in a world of constant doubt and suspicion."

What's terrible is to pretend that second-rate is first-rate. To pretend that you don't need love when you do; or you like your work when you know quite well you're capable of better.

The nose of a mob is its imagination. By this, at any time, it can be quietly led.

只要心意不放纵，就不会出现差错；只要用心不怠惰疏忽，就没有不能坚守的、随意放纵的志向。

Safety is not just a policy, it's a culture that must be embedded in every operation we undertake.

我不是一个喜欢回头看的人，我总是向前看。