傍晚是我一天中最喜欢的时光。我喜欢从白天到夜晚的过渡，光线的变化，空气的感觉。

To be happy is only to have freed one's soul from the unrest of unhappiness.

富家子弟因求官位而倾家荡产，贪污的官吏因贪财而失职守。

In the context of computational learning, the concept of 'probably approximately correct' (PAC) learning provides a framework for understanding the efficiency and feasibility of learning algorithms.