数学的研究是所有智力和精神发展的不可或缺的基础。
To understand everything is to forgive everything.
Words are sacred, and their misuse is a sin.
There are three things I have always loved and never understood—art, music, and women.
The poet is someone who pays attention to the world.
Certification schemes are the grammar of responsible forestry—they give structure to our good intentions.