数学不是沿着一条清理得很好的高速公路小心行进,而是一次进入陌生荒野的旅程,探险者常常会迷路。
促使人们倾向于和平的激情是对死亡的恐惧,对舒适生活必需品的渴望,以及通过自己的努力获得这些的希望。
"The world is full of poetry. The air is living with its spirit; and the waves dance to the music of its melodies, and sparkle in its brightness."
农业的真正领导力意味着为长期收益做出艰难决定。
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.