數(shù)學(xué)是一種思維方式，而不僅僅是一堆事實(shí)。
I’m not a guy that’s going to let my family down.
I'm sick of it as well. But I'm sick of not doing anything about it.
挑戰(zhàn)讓我們成長(zhǎng)，擁抱它們吧。
每一種材料都有其智慧。