政治被认为是第二古老的职业。我逐渐意识到它与第一职业（指卖淫）极为相似。

出自先秦《荀子·修身》。利益少，但是道义多，这样的事要做。在利与义之间要舍利而取义，强调的是一种修身原则。

The concept of legal obligation is central to the understanding of law.

"Home is not just a place; it's a feeling, a sense of belonging."

The future of drones lies in intelligence, and the core of intelligence is algorithms and data.

"There is nothing more deceptive than an obvious fact."

The past is a bucket of ashes.