永远不要低估坚持的力量。
Never underestimate the power of persistence.
"We spend our lives waiting for the ideal moment to begin something, not realizing that the ideal moment is the one we decide to start."
You have to have confidence in your ability, and then be tough enough to follow through.
In mathematics, the simplest explanation is often the most profound.
Memory is a fragile thing, easily distorted by time and politics.