数学不是关于数字、方程、计算或算法的：它是关于理解的。
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
Every piece of plastic we don't recycle is a failure of our system and our responsibility.
In the land of freedom, every man is a king.
"The beauty of literature lies in its ability to make the invisible visible, to give voice to the voiceless, and to illuminate the darkest corners of the human soul."
Over one's mind and over one's body the individual is sovereign.