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Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
The world is full of signs and wonders that come, and go, and if you are lucky you might catch the tail of one.
What is freedom of expression? Without the freedom to offend, it ceases to exist.
The little things are infinitely the most important.
The most difficult challenges often present the greatest opportunities for transformation.
石头或许坚硬,但我们的决心必须更加坚定。