Learn how to tie a bowline knot. Practice in the dark. With one hand. For the rest of your life you’ll use this knot more times than you would ever believe.
學會怎么打稱人結（又叫“撐人結”，不會越拉越小的結）。而且要摸黑練習、單手練習。在今后的日子里，你根本想不到它有多有用。
Collaboration across industries is essential for creating sustainable solutions.
The world is full of invisible wounds.
學習數學的唯一方法就是做數學。
Mathematics knows no races or geographic boundaries; for mathematics, the cultural world is one country.