“ We can learn something new anytime we believe we can. 我们可以在任何时候学习新东西,只要我们相信我们可以。 Virginia Satir 弗吉尼亚·萨蒂尔
“ An approximate answer to the right problem is worth a good deal more than an exact answer to an approximate problem. 正确问题的近似答案比近似问题的精确答案更有价值。 John Tukey 图基