我不是為了錢或名聲而打球，我打球是因為我愛網(wǎng)球。
I'm grateful for every challenge because it made me stronger.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
數(shù)學不是關(guān)于數(shù)字、方程、計算或算法的：它是關(guān)于理解的。