A mathematician's work is never done; there are always new questions to ask and new mysteries to solve.
最终,我们会记住的不是我们的敌人的话语,而是我们朋友的沉默。
The only way to approach the spiritual world is through the gate of reverence.
拖延乃光阴之窃贼。
The most difficult challenges often present the greatest opportunities for transformation.