数学的本质在于它的自由。
A penny earned is a penny saved.
除了心灵情感的神圣性和想象力的真实性外,我对一切都无法确定。
追求知识是一场没有终点的旅程,而这正是它令人兴奋的地方。
True leadership is not about being in charge, but about taking care of those in your charge.
中原的事业如同江南一样,何必因为六朝的兴衰而怨恨芳草呢?