你必须在内心找到让你与众不同的东西。
You have to find in yourself what makes you different from everybody else.
The best things in life are the people we love, the places we've been, and the memories we've made along the way.
The joy of discovery in mathematics is unparalleled.
The concept of law involves the union of primary and secondary rules.
Men fear death as children fear to go in the dark； and as that natural fear in children is increased with tales， so is the other.