学得越多,越明白自己知之甚少。
统计学家不能逃避理清科学推断原理的责任,同样地,任何其他思考者也必须承担类似义务。
In mathematics, the art of proposing a question must be held of higher value than solving it.
The art of progress is to preserve order amid change and to preserve change amid order.
儿童不仅在心理上是被动的,而且像一个空花瓶,是一个有待于充满及塑造的生命。