每一个数学问题都是一个等待解决的谜题，每一个解决方案都是迈向更深入理解的一步。
Every mathematical problem is a puzzle waiting to be solved, and every solution is a step towards greater understanding.
Survival = Anger × Imagination.
We are not selling water, we are selling health.
The biggest risk is not taking any risk.
The future belongs to those who can balance profitability with purpose.