Mathematics is the art of asking the right questions and then finding their answers.
Sustainability isn't a trend, it's a necessity.
卡匹。听见了吗?卡匹。卡匹迪恩。抓紧时间,孩子们。让你的生命不同寻常。
生活是一系列的时刻,有些转瞬即逝,有些永恒。