Never stop learning—the world is always evolving.
Man, unlike any other thing organic or inorganic in the universe, grows beyond his work, walks up the stairs of his concepts, emerges ahead of his accomplishments.
译文：还记得从前中秋时，我对着丹桂丛饮酒，花影倒映在酒杯中，月影也倒映在酒杯中。
The search for reciprocity laws is a fundamental theme in the history of mathematics.