A story is not finished until it has taken the worst possible turn.
In mathematics, the art of proposing a question must be held of higher value than solving it.
说话是一种冒险，但沉默是更大的冒险。
解释：好像白色的丝一样，放到蓝色的染缸中，就成为青色；放到红色的染缸中，就成为赤色。
The future belongs to those who give the next generation reason for hope.