Quote by William H. McCallum
"The real contest is always between what you've done and what you're capable of doing."
More from William H. McCallum
"Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding."
"The best way to understand something is to try to explain it to someone else."
"A good teacher is like a candle - it consumes itself to light the way for others."
"In mathematics, you don't understand things. You just get used to them."