Mathematics is not a spectator sport—you have to engage with it to appreciate its beauty.
数学不是观赏性运动——你必须参与其中才能欣赏它的美。
解释:德行不够优良的人,难以有崇高的信念与理想。才能不够突出的人,难以有渊博的知识和见解。
思考是最艰难的工作,这可能是为什么如此少的人从事它。
It's not always necessary to be better than everyone else, but to be better than you used to be.