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。
Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.
The world changes fast, but people's hearts change slowly.
The Internet is a powerful tool for education, but it is not a substitute for the teacher.
释义:如果两人志趣相投,即使隔着高山和大海也不会感到遥远,如果两人理念不合,近在眼前也觉得心离得远。