We must accept finite disappointment， but we must never lose infinite hope.
我们必须接受失望，因为它是有限的，但千万不可失去希望，因为它是无限的。
The best way to learn mathematics is to do mathematics.
"The measure of a civilization is how it treats its weakest members."
我唔怕被人批评，最怕系冇人理我。