生活中唯一的限制是你自己设定的。
Life is 10% what happens to you and 90% how you react to it.
出自汉·桓宽《盐铁论·执务》。阜,土山。土积得多便会成山,水积得多便成江河。此以积土成山、积水成河为喻,说明积少成多、凡事要从一点一滴做起的道理。
In mathematics, as in life, the most profound discoveries often come from asking the simplest questions.