I never buy anything unless I can give a good reason why I think it will go up.
"Every man is the hero of his own story."
成功是一段旅程,而不是终点。关键在于你在途中取得的进步。
数学的研究是所有智力和精神进步不可或缺的基础。
We are all searching for something, but we don't always know what it is.