To me, fearless is not the absence of fear. It's not being completely unafraid. To me, fearless is having fears. Fearless is having doubts. Lots of them.
The most profound ideas in mathematics often arise from the simplest observations.
数学的研究是所有智力和精神进步不可或缺的基础。
财富不应该集中在少数人手中，而应该通过公正的竞争分配给所有人。