The mind is everything. What you think you become.
The law of nature is the fundamental wisdom.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法：它是关于理解的。
Don't be swayed by others' opinions, be your truest self.
Honor is like an island, rugged and without a beach; once we have left it, we can never return.