Rigor in proof is what separates mathematics from all other sciences.
即使我们把家园抛在身后,我们仍然把它们带在心里。
Why is it that when one man builds a wall, the next man immediately needs to know what's on the other side?
Humility is the starting point of wisdom, and pride is the endpoint of foolishness.
The customer's voice is the most important sound in any business.
Success is relative: It is what we can make of the mess we have made of things.