Education is not preparation for life;education is life itself.
The beauty of mathematics is that it allows us to abstract away the complexities of the real world and focus on the underlying principles.
Shopping is arguably the last remaining form of public activity.
The most profound ideas in mathematics often arise from the simplest observations.
我们不能总是为我们的青年建造未来，但我们可以为未来建造我们的青年。
A society grows great when old men plant trees whose shade they know they shall never sit in.