数学中的每一个问题都是学习新东西的机会。
Every problem in mathematics is an opportunity to learn something new.
英雄与恶棍之间的界限往往比我们想象的更薄。
La imaginación es el territorio más libre del ser humano.
The world is not a rectangle.
The human soul is the result of the balance of Love and Strife within the body.